Home / 5,851.68-8,781.02-2,103.15

Finding the Fourth Proportional to 5,851.68, 8,781.02 and 2,103.15

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Solution

The fourth proportional to 5,851.68, 8,781.02 and 2,103.15 is: 3,155.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,851.68 : 8,781.02 = 2,103.15 : x
  2. Step 2: Convert to fraction form
    5,851.68/8,781.02 = 2,103.15/x
  3. Step 3: Cross multiply
    5,851.68x = 8,781.02 × 2,103.15
  4. Step 4: Simplify right side
    5,851.68x = 18,467,791.70
  5. Step 5: Solve for x
    x = 18,467,791.70/5,851.68
  6. Step 6: Final answer
    x = 3,155.98

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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.