Home / 5,747.72-8,621.40-1,587.98

Finding the Fourth Proportional to 5,747.72, 8,621.40 and 1,587.98

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Solution

The fourth proportional to 5,747.72, 8,621.40 and 1,587.98 is: 2,381.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,747.72 : 8,621.40 = 1,587.98 : x
  2. Step 2: Convert to fraction form
    5,747.72/8,621.40 = 1,587.98/x
  3. Step 3: Cross multiply
    5,747.72x = 8,621.40 × 1,587.98
  4. Step 4: Simplify right side
    5,747.72x = 13,690,610.77
  5. Step 5: Solve for x
    x = 13,690,610.77/5,747.72
  6. Step 6: Final answer
    x = 2,381.92

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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.