Home / 5,147.55-7,721.26-1,251.96

Finding the Fourth Proportional to 5,147.55, 7,721.26 and 1,251.96

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Solution

The fourth proportional to 5,147.55, 7,721.26 and 1,251.96 is: 1,877.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.55 : 7,721.26 = 1,251.96 : x
  2. Step 2: Convert to fraction form
    5,147.55/7,721.26 = 1,251.96/x
  3. Step 3: Cross multiply
    5,147.55x = 7,721.26 × 1,251.96
  4. Step 4: Simplify right side
    5,147.55x = 9,666,676.58
  5. Step 5: Solve for x
    x = 9,666,676.58/5,147.55
  6. Step 6: Final answer
    x = 1,877.92

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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.