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Finding the Fourth Proportional to 2,654.61, 3,663.48 and 1,535.60

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Solution

The fourth proportional to 2,654.61, 3,663.48 and 1,535.60 is: 2,119.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,654.61 : 3,663.48 = 1,535.60 : x
  2. Step 2: Convert to fraction form
    2,654.61/3,663.48 = 1,535.60/x
  3. Step 3: Cross multiply
    2,654.61x = 3,663.48 × 1,535.60
  4. Step 4: Simplify right side
    2,654.61x = 5,625,621.57
  5. Step 5: Solve for x
    x = 5,625,621.57/2,654.61
  6. Step 6: Final answer
    x = 2,119.19

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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.