Home / 1,261.30-1,741.44-966.04

Finding the Fourth Proportional to 1,261.30, 1,741.44 and 966.04

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Solution

The fourth proportional to 1,261.30, 1,741.44 and 966.04 is: 1,333.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.30 : 1,741.44 = 966.04 : x
  2. Step 2: Convert to fraction form
    1,261.30/1,741.44 = 966.04/x
  3. Step 3: Cross multiply
    1,261.30x = 1,741.44 × 966.04
  4. Step 4: Simplify right side
    1,261.30x = 1,682,300.70
  5. Step 5: Solve for x
    x = 1,682,300.70/1,261.30
  6. Step 6: Final answer
    x = 1,333.78

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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.