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Finding the Fourth Proportional to 2,348.84, 3,240.87 and 1,353.89

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Solution

The fourth proportional to 2,348.84, 3,240.87 and 1,353.89 is: 1,868.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,348.84 : 3,240.87 = 1,353.89 : x
  2. Step 2: Convert to fraction form
    2,348.84/3,240.87 = 1,353.89/x
  3. Step 3: Cross multiply
    2,348.84x = 3,240.87 × 1,353.89
  4. Step 4: Simplify right side
    2,348.84x = 4,387,781.48
  5. Step 5: Solve for x
    x = 4,387,781.48/2,348.84
  6. Step 6: Final answer
    x = 1,868.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.