Home / 1,250.72-1,723.96-1,001.60

Finding the Fourth Proportional to 1,250.72, 1,723.96 and 1,001.60

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Solution

The fourth proportional to 1,250.72, 1,723.96 and 1,001.60 is: 1,380.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250.72 : 1,723.96 = 1,001.60 : x
  2. Step 2: Convert to fraction form
    1,250.72/1,723.96 = 1,001.60/x
  3. Step 3: Cross multiply
    1,250.72x = 1,723.96 × 1,001.60
  4. Step 4: Simplify right side
    1,250.72x = 1,726,718.34
  5. Step 5: Solve for x
    x = 1,726,718.34/1,250.72
  6. Step 6: Final answer
    x = 1,380.58

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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.