Home / 1,825.28-2,512.68-1,382.48

Finding the Fourth Proportional to 1,825.28, 2,512.68 and 1,382.48

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Solution

The fourth proportional to 1,825.28, 2,512.68 and 1,382.48 is: 1,903.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,825.28 : 2,512.68 = 1,382.48 : x
  2. Step 2: Convert to fraction form
    1,825.28/2,512.68 = 1,382.48/x
  3. Step 3: Cross multiply
    1,825.28x = 2,512.68 × 1,382.48
  4. Step 4: Simplify right side
    1,825.28x = 3,473,729.85
  5. Step 5: Solve for x
    x = 3,473,729.85/1,825.28
  6. Step 6: Final answer
    x = 1,903.12

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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.