Home / 1,239.28-1,708.39-944.03

Finding the Fourth Proportional to 1,239.28, 1,708.39 and 944.03

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Solution

The fourth proportional to 1,239.28, 1,708.39 and 944.03 is: 1,301.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239.28 : 1,708.39 = 944.03 : x
  2. Step 2: Convert to fraction form
    1,239.28/1,708.39 = 944.03/x
  3. Step 3: Cross multiply
    1,239.28x = 1,708.39 × 944.03
  4. Step 4: Simplify right side
    1,239.28x = 1,612,766.69
  5. Step 5: Solve for x
    x = 1,612,766.69/1,239.28
  6. Step 6: Final answer
    x = 1,301.38

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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.