Home / 1,249.22-1,725.45-935.88

Finding the Fourth Proportional to 1,249.22, 1,725.45 and 935.88

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Solution

The fourth proportional to 1,249.22, 1,725.45 and 935.88 is: 1,292.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249.22 : 1,725.45 = 935.88 : x
  2. Step 2: Convert to fraction form
    1,249.22/1,725.45 = 935.88/x
  3. Step 3: Cross multiply
    1,249.22x = 1,725.45 × 935.88
  4. Step 4: Simplify right side
    1,249.22x = 1,614,811.81
  5. Step 5: Solve for x
    x = 1,614,811.81/1,249.22
  6. Step 6: Final answer
    x = 1,292.66

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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.