Home / 5,147.01-7,720.47-1,251.42

Finding the Fourth Proportional to 5,147.01, 7,720.47 and 1,251.42

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Solution

The fourth proportional to 5,147.01, 7,720.47 and 1,251.42 is: 1,877.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.01 : 7,720.47 = 1,251.42 : x
  2. Step 2: Convert to fraction form
    5,147.01/7,720.47 = 1,251.42/x
  3. Step 3: Cross multiply
    5,147.01x = 7,720.47 × 1,251.42
  4. Step 4: Simplify right side
    5,147.01x = 9,661,550.57
  5. Step 5: Solve for x
    x = 9,661,550.57/5,147.01
  6. Step 6: Final answer
    x = 1,877.12

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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.