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Finding the Fourth Proportional to 2,339.29, 3,508.33 and 695.40

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Solution

The fourth proportional to 2,339.29, 3,508.33 and 695.40 is: 1,042.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.29 : 3,508.33 = 695.40 : x
  2. Step 2: Convert to fraction form
    2,339.29/3,508.33 = 695.40/x
  3. Step 3: Cross multiply
    2,339.29x = 3,508.33 × 695.40
  4. Step 4: Simplify right side
    2,339.29x = 2,439,692.68
  5. Step 5: Solve for x
    x = 2,439,692.68/2,339.29
  6. Step 6: Final answer
    x = 1,042.92

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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.