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Finding the Fourth Proportional to 1,510.31, 2,265.85 and 585.61

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Solution

The fourth proportional to 1,510.31, 2,265.85 and 585.61 is: 878.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.31 : 2,265.85 = 585.61 : x
  2. Step 2: Convert to fraction form
    1,510.31/2,265.85 = 585.61/x
  3. Step 3: Cross multiply
    1,510.31x = 2,265.85 × 585.61
  4. Step 4: Simplify right side
    1,510.31x = 1,326,904.42
  5. Step 5: Solve for x
    x = 1,326,904.42/1,510.31
  6. Step 6: Final answer
    x = 878.56

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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.