Home / 1,261.73-1,741.17-702.18

Finding the Fourth Proportional to 1,261.73, 1,741.17 and 702.18

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Solution

The fourth proportional to 1,261.73, 1,741.17 and 702.18 is: 969.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.73 : 1,741.17 = 702.18 : x
  2. Step 2: Convert to fraction form
    1,261.73/1,741.17 = 702.18/x
  3. Step 3: Cross multiply
    1,261.73x = 1,741.17 × 702.18
  4. Step 4: Simplify right side
    1,261.73x = 1,222,614.75
  5. Step 5: Solve for x
    x = 1,222,614.75/1,261.73
  6. Step 6: Final answer
    x = 969.00

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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.