Home / 2,290,891.40-3,436,337.10-1,920,408.20

Finding the Fourth Proportional to 2,290,891.40, 3,436,337.10 and 1,920,408.20

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Solution

The fourth proportional to 2,290,891.40, 3,436,337.10 and 1,920,408.20 is: 2,880,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290,891.40 : 3,436,337.10 = 1,920,408.20 : x
  2. Step 2: Convert to fraction form
    2,290,891.40/3,436,337.10 = 1,920,408.20/x
  3. Step 3: Cross multiply
    2,290,891.40x = 3,436,337.10 × 1,920,408.20
  4. Step 4: Simplify right side
    2,290,891.40x = 6,599,169,944,804.22
  5. Step 5: Solve for x
    x = 6,599,169,944,804.22/2,290,891.40
  6. Step 6: Final answer
    x = 2,880,612.30

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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.