Home / 3,882.87-5,345.26-3,508.72

Finding the Fourth Proportional to 3,882.87, 5,345.26 and 3,508.72

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Solution

The fourth proportional to 3,882.87, 5,345.26 and 3,508.72 is: 4,830.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.87 : 5,345.26 = 3,508.72 : x
  2. Step 2: Convert to fraction form
    3,882.87/5,345.26 = 3,508.72/x
  3. Step 3: Cross multiply
    3,882.87x = 5,345.26 × 3,508.72
  4. Step 4: Simplify right side
    3,882.87x = 18,754,998.53
  5. Step 5: Solve for x
    x = 18,754,998.53/3,882.87
  6. Step 6: Final answer
    x = 4,830.19

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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.