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Finding the Fourth Proportional to 3,232.80, 4,848.72 and 924

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Solution

The fourth proportional to 3,232.80, 4,848.72 and 924 is: 1,385.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,232.80 : 4,848.72 = 924 : x
  2. Step 2: Convert to fraction form
    3,232.80/4,848.72 = 924/x
  3. Step 3: Cross multiply
    3,232.80x = 4,848.72 × 924
  4. Step 4: Simplify right side
    3,232.80x = 4,480,217.28
  5. Step 5: Solve for x
    x = 4,480,217.28/3,232.80
  6. Step 6: Final answer
    x = 1,385.86

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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.