Home / 1,691.30-2,334.02-945.29

Finding the Fourth Proportional to 1,691.30, 2,334.02 and 945.29

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Solution

The fourth proportional to 1,691.30, 2,334.02 and 945.29 is: 1,304.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691.30 : 2,334.02 = 945.29 : x
  2. Step 2: Convert to fraction form
    1,691.30/2,334.02 = 945.29/x
  3. Step 3: Cross multiply
    1,691.30x = 2,334.02 × 945.29
  4. Step 4: Simplify right side
    1,691.30x = 2,206,326.87
  5. Step 5: Solve for x
    x = 2,206,326.87/1,691.30
  6. Step 6: Final answer
    x = 1,304.51

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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.