Home / 5,242.76-7,862.06-1,543.72

Finding the Fourth Proportional to 5,242.76, 7,862.06 and 1,543.72

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Solution

The fourth proportional to 5,242.76, 7,862.06 and 1,543.72 is: 2,314.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.76 : 7,862.06 = 1,543.72 : x
  2. Step 2: Convert to fraction form
    5,242.76/7,862.06 = 1,543.72/x
  3. Step 3: Cross multiply
    5,242.76x = 7,862.06 × 1,543.72
  4. Step 4: Simplify right side
    5,242.76x = 12,136,819.26
  5. Step 5: Solve for x
    x = 12,136,819.26/5,242.76
  6. Step 6: Final answer
    x = 2,314.97

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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.