Home / 5,169.18-7,751.38-1,658.54

Finding the Fourth Proportional to 5,169.18, 7,751.38 and 1,658.54

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Solution

The fourth proportional to 5,169.18, 7,751.38 and 1,658.54 is: 2,487.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.18 : 7,751.38 = 1,658.54 : x
  2. Step 2: Convert to fraction form
    5,169.18/7,751.38 = 1,658.54/x
  3. Step 3: Cross multiply
    5,169.18x = 7,751.38 × 1,658.54
  4. Step 4: Simplify right side
    5,169.18x = 12,855,973.79
  5. Step 5: Solve for x
    x = 12,855,973.79/5,169.18
  6. Step 6: Final answer
    x = 2,487.04

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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.