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Finding the Fourth Proportional to 3,154.48, 4,731.72 and 963.16

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Solution

The fourth proportional to 3,154.48, 4,731.72 and 963.16 is: 1,444.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.48 : 4,731.72 = 963.16 : x
  2. Step 2: Convert to fraction form
    3,154.48/4,731.72 = 963.16/x
  3. Step 3: Cross multiply
    3,154.48x = 4,731.72 × 963.16
  4. Step 4: Simplify right side
    3,154.48x = 4,557,403.44
  5. Step 5: Solve for x
    x = 4,557,403.44/3,154.48
  6. Step 6: Final answer
    x = 1,444.74

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Similar ratio
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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.