Home / 1,717.92-2,371.82-1,275.30

Finding the Fourth Proportional to 1,717.92, 2,371.82 and 1,275.30

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Solution

The fourth proportional to 1,717.92, 2,371.82 and 1,275.30 is: 1,760.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.92 : 2,371.82 = 1,275.30 : x
  2. Step 2: Convert to fraction form
    1,717.92/2,371.82 = 1,275.30/x
  3. Step 3: Cross multiply
    1,717.92x = 2,371.82 × 1,275.30
  4. Step 4: Simplify right side
    1,717.92x = 3,024,775.67
  5. Step 5: Solve for x
    x = 3,024,775.67/1,717.92
  6. Step 6: Final answer
    x = 1,760.72

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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.