Home / 3,997.47-5,512.92-2,505.55

Finding the Fourth Proportional to 3,997.47, 5,512.92 and 2,505.55

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Solution

The fourth proportional to 3,997.47, 5,512.92 and 2,505.55 is: 3,455.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.47 : 5,512.92 = 2,505.55 : x
  2. Step 2: Convert to fraction form
    3,997.47/5,512.92 = 2,505.55/x
  3. Step 3: Cross multiply
    3,997.47x = 5,512.92 × 2,505.55
  4. Step 4: Simplify right side
    3,997.47x = 13,812,896.71
  5. Step 5: Solve for x
    x = 13,812,896.71/3,997.47
  6. Step 6: Final answer
    x = 3,455.41

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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.