Home / 1,375.08-2,061.17-450.39

Finding the Fourth Proportional to 1,375.08, 2,061.17 and 450.39

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Solution

The fourth proportional to 1,375.08, 2,061.17 and 450.39 is: 675.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375.08 : 2,061.17 = 450.39 : x
  2. Step 2: Convert to fraction form
    1,375.08/2,061.17 = 450.39/x
  3. Step 3: Cross multiply
    1,375.08x = 2,061.17 × 450.39
  4. Step 4: Simplify right side
    1,375.08x = 928,337.52
  5. Step 5: Solve for x
    x = 928,337.52/1,375.08
  6. Step 6: Final answer
    x = 675.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.