Home / 3,716.59-5,128.85-2,144.65

Finding the Fourth Proportional to 3,716.59, 5,128.85 and 2,144.65

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Solution

The fourth proportional to 3,716.59, 5,128.85 and 2,144.65 is: 2,959.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.59 : 5,128.85 = 2,144.65 : x
  2. Step 2: Convert to fraction form
    3,716.59/5,128.85 = 2,144.65/x
  3. Step 3: Cross multiply
    3,716.59x = 5,128.85 × 2,144.65
  4. Step 4: Simplify right side
    3,716.59x = 10,999,551.79
  5. Step 5: Solve for x
    x = 10,999,551.79/3,716.59
  6. Step 6: Final answer
    x = 2,959.59

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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.