Home / 1,432.18-2,147.19-968.80

Finding the Fourth Proportional to 1,432.18, 2,147.19 and 968.80

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Solution

The fourth proportional to 1,432.18, 2,147.19 and 968.80 is: 1,452.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.18 : 2,147.19 = 968.80 : x
  2. Step 2: Convert to fraction form
    1,432.18/2,147.19 = 968.80/x
  3. Step 3: Cross multiply
    1,432.18x = 2,147.19 × 968.80
  4. Step 4: Simplify right side
    1,432.18x = 2,080,197.67
  5. Step 5: Solve for x
    x = 2,080,197.67/1,432.18
  6. Step 6: Final answer
    x = 1,452.47

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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.