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Finding the Fourth Proportional to 1,717.47, 2,576.10 and 1,059.47

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Solution

The fourth proportional to 1,717.47, 2,576.10 and 1,059.47 is: 1,589.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.47 : 2,576.10 = 1,059.47 : x
  2. Step 2: Convert to fraction form
    1,717.47/2,576.10 = 1,059.47/x
  3. Step 3: Cross multiply
    1,717.47x = 2,576.10 × 1,059.47
  4. Step 4: Simplify right side
    1,717.47x = 2,729,308.67
  5. Step 5: Solve for x
    x = 2,729,308.67/1,717.47
  6. Step 6: Final answer
    x = 1,589.14

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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.