Home / 3,751.30-5,175.92-2,178.46

Finding the Fourth Proportional to 3,751.30, 5,175.92 and 2,178.46

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Solution

The fourth proportional to 3,751.30, 5,175.92 and 2,178.46 is: 3,005.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.30 : 5,175.92 = 2,178.46 : x
  2. Step 2: Convert to fraction form
    3,751.30/5,175.92 = 2,178.46/x
  3. Step 3: Cross multiply
    3,751.30x = 5,175.92 × 2,178.46
  4. Step 4: Simplify right side
    3,751.30x = 11,275,534.68
  5. Step 5: Solve for x
    x = 11,275,534.68/3,751.30
  6. Step 6: Final answer
    x = 3,005.77

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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.