Home / 5,132.39-7,082.18-3,788.72

Finding the Fourth Proportional to 5,132.39, 7,082.18 and 3,788.72

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Solution

The fourth proportional to 5,132.39, 7,082.18 and 3,788.72 is: 5,228.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.39 : 7,082.18 = 3,788.72 : x
  2. Step 2: Convert to fraction form
    5,132.39/7,082.18 = 3,788.72/x
  3. Step 3: Cross multiply
    5,132.39x = 7,082.18 × 3,788.72
  4. Step 4: Simplify right side
    5,132.39x = 26,832,342.66
  5. Step 5: Solve for x
    x = 26,832,342.66/5,132.39
  6. Step 6: Final answer
    x = 5,228.04

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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.