Home / 4,192.40-6,287.16-2,000.72

Finding the Fourth Proportional to 4,192.40, 6,287.16 and 2,000.72

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Solution

The fourth proportional to 4,192.40, 6,287.16 and 2,000.72 is: 3,000.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192.40 : 6,287.16 = 2,000.72 : x
  2. Step 2: Convert to fraction form
    4,192.40/6,287.16 = 2,000.72/x
  3. Step 3: Cross multiply
    4,192.40x = 6,287.16 × 2,000.72
  4. Step 4: Simplify right side
    4,192.40x = 12,578,846.76
  5. Step 5: Solve for x
    x = 12,578,846.76/4,192.40
  6. Step 6: Final answer
    x = 3,000.39

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Half scale
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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.