Home / 3,932.39-5,428.54-2,518.13

Finding the Fourth Proportional to 3,932.39, 5,428.54 and 2,518.13

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Solution

The fourth proportional to 3,932.39, 5,428.54 and 2,518.13 is: 3,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.39 : 5,428.54 = 2,518.13 : x
  2. Step 2: Convert to fraction form
    3,932.39/5,428.54 = 2,518.13/x
  3. Step 3: Cross multiply
    3,932.39x = 5,428.54 × 2,518.13
  4. Step 4: Simplify right side
    3,932.39x = 13,669,755.06
  5. Step 5: Solve for x
    x = 13,669,755.06/3,932.39
  6. Step 6: Final answer
    x = 3,476.20

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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.