Home / 1,432.16-2,149.46-884.80

Finding the Fourth Proportional to 1,432.16, 2,149.46 and 884.80

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Solution

The fourth proportional to 1,432.16, 2,149.46 and 884.80 is: 1,327.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.16 : 2,149.46 = 884.80 : x
  2. Step 2: Convert to fraction form
    1,432.16/2,149.46 = 884.80/x
  3. Step 3: Cross multiply
    1,432.16x = 2,149.46 × 884.80
  4. Step 4: Simplify right side
    1,432.16x = 1,901,842.21
  5. Step 5: Solve for x
    x = 1,901,842.21/1,432.16
  6. Step 6: Final answer
    x = 1,327.95

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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.