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Finding the Fourth Proportional to 2,956.93, 4,432.39 and 1,917.59

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Solution

The fourth proportional to 2,956.93, 4,432.39 and 1,917.59 is: 2,874.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.93 : 4,432.39 = 1,917.59 : x
  2. Step 2: Convert to fraction form
    2,956.93/4,432.39 = 1,917.59/x
  3. Step 3: Cross multiply
    2,956.93x = 4,432.39 × 1,917.59
  4. Step 4: Simplify right side
    2,956.93x = 8,499,479.78
  5. Step 5: Solve for x
    x = 8,499,479.78/2,956.93
  6. Step 6: Final answer
    x = 2,874.43

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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.