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Finding the Fourth Proportional to 2,251.42, 3,376.82 and 953.19

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Solution

The fourth proportional to 2,251.42, 3,376.82 and 953.19 is: 1,429.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.42 : 3,376.82 = 953.19 : x
  2. Step 2: Convert to fraction form
    2,251.42/3,376.82 = 953.19/x
  3. Step 3: Cross multiply
    2,251.42x = 3,376.82 × 953.19
  4. Step 4: Simplify right side
    2,251.42x = 3,218,753.44
  5. Step 5: Solve for x
    x = 3,218,753.44/2,251.42
  6. Step 6: Final answer
    x = 1,429.66

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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.