Home / 5,077.38-7,615.17-1,379.12

Finding the Fourth Proportional to 5,077.38, 7,615.17 and 1,379.12

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Solution

The fourth proportional to 5,077.38, 7,615.17 and 1,379.12 is: 2,068.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.38 : 7,615.17 = 1,379.12 : x
  2. Step 2: Convert to fraction form
    5,077.38/7,615.17 = 1,379.12/x
  3. Step 3: Cross multiply
    5,077.38x = 7,615.17 × 1,379.12
  4. Step 4: Simplify right side
    5,077.38x = 10,502,233.25
  5. Step 5: Solve for x
    x = 10,502,233.25/5,077.38
  6. Step 6: Final answer
    x = 2,068.44

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1.5x scale

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.