Home / 3,965.65-5,472.45-2,287.13

Finding the Fourth Proportional to 3,965.65, 5,472.45 and 2,287.13

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Solution

The fourth proportional to 3,965.65, 5,472.45 and 2,287.13 is: 3,156.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.65 : 5,472.45 = 2,287.13 : x
  2. Step 2: Convert to fraction form
    3,965.65/5,472.45 = 2,287.13/x
  3. Step 3: Cross multiply
    3,965.65x = 5,472.45 × 2,287.13
  4. Step 4: Simplify right side
    3,965.65x = 12,516,196.61
  5. Step 5: Solve for x
    x = 12,516,196.61/3,965.65
  6. Step 6: Final answer
    x = 3,156.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.