Home / 3,751.20-5,176.56-2,179.56

Finding the Fourth Proportional to 3,751.20, 5,176.56 and 2,179.56

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Solution

The fourth proportional to 3,751.20, 5,176.56 and 2,179.56 is: 3,007.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.20 : 5,176.56 = 2,179.56 : x
  2. Step 2: Convert to fraction form
    3,751.20/5,176.56 = 2,179.56/x
  3. Step 3: Cross multiply
    3,751.20x = 5,176.56 × 2,179.56
  4. Step 4: Simplify right side
    3,751.20x = 11,282,623.11
  5. Step 5: Solve for x
    x = 11,282,623.11/3,751.20
  6. Step 6: Final answer
    x = 3,007.74

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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.