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Finding the Fourth Proportional to 1,432.45, 2,147.39 and 652.04

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Solution

The fourth proportional to 1,432.45, 2,147.39 and 652.04 is: 977.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.45 : 2,147.39 = 652.04 : x
  2. Step 2: Convert to fraction form
    1,432.45/2,147.39 = 652.04/x
  3. Step 3: Cross multiply
    1,432.45x = 2,147.39 × 652.04
  4. Step 4: Simplify right side
    1,432.45x = 1,400,184.18
  5. Step 5: Solve for x
    x = 1,400,184.18/1,432.45
  6. Step 6: Final answer
    x = 977.48

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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.