Home / 2,299.13-3,172.79-1,251.20

Finding the Fourth Proportional to 2,299.13, 3,172.79 and 1,251.20

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Solution

The fourth proportional to 2,299.13, 3,172.79 and 1,251.20 is: 1,726.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.13 : 3,172.79 = 1,251.20 : x
  2. Step 2: Convert to fraction form
    2,299.13/3,172.79 = 1,251.20/x
  3. Step 3: Cross multiply
    2,299.13x = 3,172.79 × 1,251.20
  4. Step 4: Simplify right side
    2,299.13x = 3,969,782.11
  5. Step 5: Solve for x
    x = 3,969,782.11/2,299.13
  6. Step 6: Final answer
    x = 1,726.65

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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.