Home / 2,299.17-3,172.77-1,251.21

Finding the Fourth Proportional to 2,299.17, 3,172.77 and 1,251.21

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Solution

The fourth proportional to 2,299.17, 3,172.77 and 1,251.21 is: 1,726.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.17 : 3,172.77 = 1,251.21 : x
  2. Step 2: Convert to fraction form
    2,299.17/3,172.77 = 1,251.21/x
  3. Step 3: Cross multiply
    2,299.17x = 3,172.77 × 1,251.21
  4. Step 4: Simplify right side
    2,299.17x = 3,969,801.55
  5. Step 5: Solve for x
    x = 3,969,801.55/2,299.17
  6. Step 6: Final answer
    x = 1,726.62

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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.