Home / 2,278.38-3,417.50-634.86

Finding the Fourth Proportional to 2,278.38, 3,417.50 and 634.86

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Solution

The fourth proportional to 2,278.38, 3,417.50 and 634.86 is: 952.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.38 : 3,417.50 = 634.86 : x
  2. Step 2: Convert to fraction form
    2,278.38/3,417.50 = 634.86/x
  3. Step 3: Cross multiply
    2,278.38x = 3,417.50 × 634.86
  4. Step 4: Simplify right side
    2,278.38x = 2,169,634.05
  5. Step 5: Solve for x
    x = 2,169,634.05/2,278.38
  6. Step 6: Final answer
    x = 952.27

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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.