Home / 1,261.66-1,741.06-702.10

Finding the Fourth Proportional to 1,261.66, 1,741.06 and 702.10

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Solution

The fourth proportional to 1,261.66, 1,741.06 and 702.10 is: 968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.66 : 1,741.06 = 702.10 : x
  2. Step 2: Convert to fraction form
    1,261.66/1,741.06 = 702.10/x
  3. Step 3: Cross multiply
    1,261.66x = 1,741.06 × 702.10
  4. Step 4: Simplify right side
    1,261.66x = 1,222,398.23
  5. Step 5: Solve for x
    x = 1,222,398.23/1,261.66
  6. Step 6: Final answer
    x = 968.88

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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.