Home / 2,299.28-3,172.91-1,251.32

Finding the Fourth Proportional to 2,299.28, 3,172.91 and 1,251.32

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Solution

The fourth proportional to 2,299.28, 3,172.91 and 1,251.32 is: 1,726.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.28 : 3,172.91 = 1,251.32 : x
  2. Step 2: Convert to fraction form
    2,299.28/3,172.91 = 1,251.32/x
  3. Step 3: Cross multiply
    2,299.28x = 3,172.91 × 1,251.32
  4. Step 4: Simplify right side
    2,299.28x = 3,970,303.62
  5. Step 5: Solve for x
    x = 3,970,303.62/2,299.28
  6. Step 6: Final answer
    x = 1,726.76

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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.