Home / 3,972.51-5,960.39-1,375.65

Finding the Fourth Proportional to 3,972.51, 5,960.39 and 1,375.65

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Solution

The fourth proportional to 3,972.51, 5,960.39 and 1,375.65 is: 2,064.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.51 : 5,960.39 = 1,375.65 : x
  2. Step 2: Convert to fraction form
    3,972.51/5,960.39 = 1,375.65/x
  3. Step 3: Cross multiply
    3,972.51x = 5,960.39 × 1,375.65
  4. Step 4: Simplify right side
    3,972.51x = 8,199,403.63
  5. Step 5: Solve for x
    x = 8,199,403.63/3,972.51
  6. Step 6: Final answer
    x = 2,064.04

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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.