Home / 1,725.41-2,380.05-1,252.76

Finding the Fourth Proportional to 1,725.41, 2,380.05 and 1,252.76

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Solution

The fourth proportional to 1,725.41, 2,380.05 and 1,252.76 is: 1,728.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.41 : 2,380.05 = 1,252.76 : x
  2. Step 2: Convert to fraction form
    1,725.41/2,380.05 = 1,252.76/x
  3. Step 3: Cross multiply
    1,725.41x = 2,380.05 × 1,252.76
  4. Step 4: Simplify right side
    1,725.41x = 2,981,619.54
  5. Step 5: Solve for x
    x = 2,981,619.54/1,725.41
  6. Step 6: Final answer
    x = 1,728.07

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Half scale
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Double scale
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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.