Home / 5,180.64-7,149.24-2,822.78

Finding the Fourth Proportional to 5,180.64, 7,149.24 and 2,822.78

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Solution

The fourth proportional to 5,180.64, 7,149.24 and 2,822.78 is: 3,895.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.64 : 7,149.24 = 2,822.78 : x
  2. Step 2: Convert to fraction form
    5,180.64/7,149.24 = 2,822.78/x
  3. Step 3: Cross multiply
    5,180.64x = 7,149.24 × 2,822.78
  4. Step 4: Simplify right side
    5,180.64x = 20,180,731.69
  5. Step 5: Solve for x
    x = 20,180,731.69/5,180.64
  6. Step 6: Final answer
    x = 3,895.41

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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.