Home / 3,972.71-5,507.45-3,762.06

Finding the Fourth Proportional to 3,972.71, 5,507.45 and 3,762.06

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Solution

The fourth proportional to 3,972.71, 5,507.45 and 3,762.06 is: 5,215.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.71 : 5,507.45 = 3,762.06 : x
  2. Step 2: Convert to fraction form
    3,972.71/5,507.45 = 3,762.06/x
  3. Step 3: Cross multiply
    3,972.71x = 5,507.45 × 3,762.06
  4. Step 4: Simplify right side
    3,972.71x = 20,719,331.99
  5. Step 5: Solve for x
    x = 20,719,331.99/3,972.71
  6. Step 6: Final answer
    x = 5,215.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.