Home / 5,428.56-7,487.38-3,514.86

Finding the Fourth Proportional to 5,428.56, 7,487.38 and 3,514.86

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Solution

The fourth proportional to 5,428.56, 7,487.38 and 3,514.86 is: 4,847.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.56 : 7,487.38 = 3,514.86 : x
  2. Step 2: Convert to fraction form
    5,428.56/7,487.38 = 3,514.86/x
  3. Step 3: Cross multiply
    5,428.56x = 7,487.38 × 3,514.86
  4. Step 4: Simplify right side
    5,428.56x = 26,317,092.47
  5. Step 5: Solve for x
    x = 26,317,092.47/5,428.56
  6. Step 6: Final answer
    x = 4,847.90

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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.