Home / 1,261.82-1,741.28-702.27

Finding the Fourth Proportional to 1,261.82, 1,741.28 and 702.27

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Solution

The fourth proportional to 1,261.82, 1,741.28 and 702.27 is: 969.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.82 : 1,741.28 = 702.27 : x
  2. Step 2: Convert to fraction form
    1,261.82/1,741.28 = 702.27/x
  3. Step 3: Cross multiply
    1,261.82x = 1,741.28 × 702.27
  4. Step 4: Simplify right side
    1,261.82x = 1,222,845.19
  5. Step 5: Solve for x
    x = 1,222,845.19/1,261.82
  6. Step 6: Final answer
    x = 969.11

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1.5x scale

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.