Home / 5,180.78-7,770.96-2,060.66

Finding the Fourth Proportional to 5,180.78, 7,770.96 and 2,060.66

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Solution

The fourth proportional to 5,180.78, 7,770.96 and 2,060.66 is: 3,090.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.78 : 7,770.96 = 2,060.66 : x
  2. Step 2: Convert to fraction form
    5,180.78/7,770.96 = 2,060.66/x
  3. Step 3: Cross multiply
    5,180.78x = 7,770.96 × 2,060.66
  4. Step 4: Simplify right side
    5,180.78x = 16,013,306.43
  5. Step 5: Solve for x
    x = 16,013,306.43/5,180.78
  6. Step 6: Final answer
    x = 3,090.91

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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.