Home / 5,180.17-7,768.31-2,218.53

Finding the Fourth Proportional to 5,180.17, 7,768.31 and 2,218.53

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Solution

The fourth proportional to 5,180.17, 7,768.31 and 2,218.53 is: 3,326.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.17 : 7,768.31 = 2,218.53 : x
  2. Step 2: Convert to fraction form
    5,180.17/7,768.31 = 2,218.53/x
  3. Step 3: Cross multiply
    5,180.17x = 7,768.31 × 2,218.53
  4. Step 4: Simplify right side
    5,180.17x = 17,234,228.78
  5. Step 5: Solve for x
    x = 17,234,228.78/5,180.17
  6. Step 6: Final answer
    x = 3,326.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.