Home / 3,882.39-5,356.90-3,749.04

Finding the Fourth Proportional to 3,882.39, 5,356.90 and 3,749.04

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Solution

The fourth proportional to 3,882.39, 5,356.90 and 3,749.04 is: 5,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.39 : 5,356.90 = 3,749.04 : x
  2. Step 2: Convert to fraction form
    3,882.39/5,356.90 = 3,749.04/x
  3. Step 3: Cross multiply
    3,882.39x = 5,356.90 × 3,749.04
  4. Step 4: Simplify right side
    3,882.39x = 20,083,232.38
  5. Step 5: Solve for x
    x = 20,083,232.38/3,882.39
  6. Step 6: Final answer
    x = 5,172.90

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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.