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Finding the Fourth Proportional to 2,432.70, 3,651.75 and 972.88

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Solution

The fourth proportional to 2,432.70, 3,651.75 and 972.88 is: 1,460.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,432.70 : 3,651.75 = 972.88 : x
  2. Step 2: Convert to fraction form
    2,432.70/3,651.75 = 972.88/x
  3. Step 3: Cross multiply
    2,432.70x = 3,651.75 × 972.88
  4. Step 4: Simplify right side
    2,432.70x = 3,552,705.41
  5. Step 5: Solve for x
    x = 3,552,705.41/2,432.70
  6. Step 6: Final answer
    x = 1,460.40

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1.5x scale

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.