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Finding the Fourth Proportional to 2,348.39, 3,522.31 and 617.15

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Solution

The fourth proportional to 2,348.39, 3,522.31 and 617.15 is: 925.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,348.39 : 3,522.31 = 617.15 : x
  2. Step 2: Convert to fraction form
    2,348.39/3,522.31 = 617.15/x
  3. Step 3: Cross multiply
    2,348.39x = 3,522.31 × 617.15
  4. Step 4: Simplify right side
    2,348.39x = 2,173,774.46
  5. Step 5: Solve for x
    x = 2,173,774.46/2,348.39
  6. Step 6: Final answer
    x = 925.65

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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.