Home / 1,718.30-2,371.11-972.29

Finding the Fourth Proportional to 1,718.30, 2,371.11 and 972.29

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Solution

The fourth proportional to 1,718.30, 2,371.11 and 972.29 is: 1,341.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718.30 : 2,371.11 = 972.29 : x
  2. Step 2: Convert to fraction form
    1,718.30/2,371.11 = 972.29/x
  3. Step 3: Cross multiply
    1,718.30x = 2,371.11 × 972.29
  4. Step 4: Simplify right side
    1,718.30x = 2,305,394.69
  5. Step 5: Solve for x
    x = 2,305,394.69/1,718.30
  6. Step 6: Final answer
    x = 1,341.68

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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.