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Finding the Fourth Proportional to 1,250.97, 1,725.88 and 753.76

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Solution

The fourth proportional to 1,250.97, 1,725.88 and 753.76 is: 1,039.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250.97 : 1,725.88 = 753.76 : x
  2. Step 2: Convert to fraction form
    1,250.97/1,725.88 = 753.76/x
  3. Step 3: Cross multiply
    1,250.97x = 1,725.88 × 753.76
  4. Step 4: Simplify right side
    1,250.97x = 1,300,899.58
  5. Step 5: Solve for x
    x = 1,300,899.58/1,250.97
  6. Step 6: Final answer
    x = 1,039.92

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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.