Home / 5,180.32-7,149-2,822.32

Finding the Fourth Proportional to 5,180.32, 7,149 and 2,822.32

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Solution

The fourth proportional to 5,180.32, 7,149 and 2,822.32 is: 3,894.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.32 : 7,149 = 2,822.32 : x
  2. Step 2: Convert to fraction form
    5,180.32/7,149 = 2,822.32/x
  3. Step 3: Cross multiply
    5,180.32x = 7,149 × 2,822.32
  4. Step 4: Simplify right side
    5,180.32x = 20,176,765.68
  5. Step 5: Solve for x
    x = 20,176,765.68/5,180.32
  6. Step 6: Final answer
    x = 3,894.89

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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.