Home / 2,917.38-4,376.68-943.12

Finding the Fourth Proportional to 2,917.38, 4,376.68 and 943.12

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Solution

The fourth proportional to 2,917.38, 4,376.68 and 943.12 is: 1,414.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.38 : 4,376.68 = 943.12 : x
  2. Step 2: Convert to fraction form
    2,917.38/4,376.68 = 943.12/x
  3. Step 3: Cross multiply
    2,917.38x = 4,376.68 × 943.12
  4. Step 4: Simplify right side
    2,917.38x = 4,127,734.44
  5. Step 5: Solve for x
    x = 4,127,734.44/2,917.38
  6. Step 6: Final answer
    x = 1,414.88

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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.