Home / 1,731.89-2,391.14-1,069.71

Finding the Fourth Proportional to 1,731.89, 2,391.14 and 1,069.71

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Solution

The fourth proportional to 1,731.89, 2,391.14 and 1,069.71 is: 1,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.89 : 2,391.14 = 1,069.71 : x
  2. Step 2: Convert to fraction form
    1,731.89/2,391.14 = 1,069.71/x
  3. Step 3: Cross multiply
    1,731.89x = 2,391.14 × 1,069.71
  4. Step 4: Simplify right side
    1,731.89x = 2,557,821.02
  5. Step 5: Solve for x
    x = 2,557,821.02/1,731.89
  6. Step 6: Final answer
    x = 1,476.90

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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.