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Finding the Fourth Proportional to 3,154.46, 4,731.93 and 963.20

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Solution

The fourth proportional to 3,154.46, 4,731.93 and 963.20 is: 1,444.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.46 : 4,731.93 = 963.20 : x
  2. Step 2: Convert to fraction form
    3,154.46/4,731.93 = 963.20/x
  3. Step 3: Cross multiply
    3,154.46x = 4,731.93 × 963.20
  4. Step 4: Simplify right side
    3,154.46x = 4,557,806.81
  5. Step 5: Solve for x
    x = 4,557,806.81/3,154.46
  6. Step 6: Final answer
    x = 1,444.88

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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.