Home / 3,750.24-5,175.36-2,178.44

Finding the Fourth Proportional to 3,750.24, 5,175.36 and 2,178.44

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Solution

The fourth proportional to 3,750.24, 5,175.36 and 2,178.44 is: 3,006.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,750.24 : 5,175.36 = 2,178.44 : x
  2. Step 2: Convert to fraction form
    3,750.24/5,175.36 = 2,178.44/x
  3. Step 3: Cross multiply
    3,750.24x = 5,175.36 × 2,178.44
  4. Step 4: Simplify right side
    3,750.24x = 11,274,211.24
  5. Step 5: Solve for x
    x = 11,274,211.24/3,750.24
  6. Step 6: Final answer
    x = 3,006.26

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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.