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Finding the Fourth Proportional to 3,153.87, 4,731.26 and 962.31

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Solution

The fourth proportional to 3,153.87, 4,731.26 and 962.31 is: 1,443.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.87 : 4,731.26 = 962.31 : x
  2. Step 2: Convert to fraction form
    3,153.87/4,731.26 = 962.31/x
  3. Step 3: Cross multiply
    3,153.87x = 4,731.26 × 962.31
  4. Step 4: Simplify right side
    3,153.87x = 4,552,958.96
  5. Step 5: Solve for x
    x = 4,552,958.96/3,153.87
  6. Step 6: Final answer
    x = 1,443.61

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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.