Home / 2,299.16-3,172.78-1,251.20

Finding the Fourth Proportional to 2,299.16, 3,172.78 and 1,251.20

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Solution

The fourth proportional to 2,299.16, 3,172.78 and 1,251.20 is: 1,726.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.16 : 3,172.78 = 1,251.20 : x
  2. Step 2: Convert to fraction form
    2,299.16/3,172.78 = 1,251.20/x
  3. Step 3: Cross multiply
    2,299.16x = 3,172.78 × 1,251.20
  4. Step 4: Simplify right side
    2,299.16x = 3,969,782.34
  5. Step 5: Solve for x
    x = 3,969,782.34/2,299.16
  6. Step 6: Final answer
    x = 1,726.62

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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.