Home / 2,191,421.40-3,287,132.10-1,855,498.20

Finding the Fourth Proportional to 2,191,421.40, 3,287,132.10 and 1,855,498.20

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Solution

The fourth proportional to 2,191,421.40, 3,287,132.10 and 1,855,498.20 is: 2,783,247.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,421.40 : 3,287,132.10 = 1,855,498.20 : x
  2. Step 2: Convert to fraction form
    2,191,421.40/3,287,132.10 = 1,855,498.20/x
  3. Step 3: Cross multiply
    2,191,421.40x = 3,287,132.10 × 1,855,498.20
  4. Step 4: Simplify right side
    2,191,421.40x = 6,099,267,694,712.22
  5. Step 5: Solve for x
    x = 6,099,267,694,712.22/2,191,421.40
  6. Step 6: Final answer
    x = 2,783,247.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.