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Finding the Fourth Proportional to 2,338.78, 3,508.16 and 951.79

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Solution

The fourth proportional to 2,338.78, 3,508.16 and 951.79 is: 1,427.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,338.78 : 3,508.16 = 951.79 : x
  2. Step 2: Convert to fraction form
    2,338.78/3,508.16 = 951.79/x
  3. Step 3: Cross multiply
    2,338.78x = 3,508.16 × 951.79
  4. Step 4: Simplify right side
    2,338.78x = 3,339,025.22
  5. Step 5: Solve for x
    x = 3,339,025.22/2,338.78
  6. Step 6: Final answer
    x = 1,427.68

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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.