Home / 2,672.17-4,008.75-1,028.57

Finding the Fourth Proportional to 2,672.17, 4,008.75 and 1,028.57

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Solution

The fourth proportional to 2,672.17, 4,008.75 and 1,028.57 is: 1,543.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.17 : 4,008.75 = 1,028.57 : x
  2. Step 2: Convert to fraction form
    2,672.17/4,008.75 = 1,028.57/x
  3. Step 3: Cross multiply
    2,672.17x = 4,008.75 × 1,028.57
  4. Step 4: Simplify right side
    2,672.17x = 4,123,279.99
  5. Step 5: Solve for x
    x = 4,123,279.99/2,672.17
  6. Step 6: Final answer
    x = 1,543.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.