Home / 3,115.80-4,675.29-2,076.54

Finding the Fourth Proportional to 3,115.80, 4,675.29 and 2,076.54

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Solution

The fourth proportional to 3,115.80, 4,675.29 and 2,076.54 is: 3,115.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.80 : 4,675.29 = 2,076.54 : x
  2. Step 2: Convert to fraction form
    3,115.80/4,675.29 = 2,076.54/x
  3. Step 3: Cross multiply
    3,115.80x = 4,675.29 × 2,076.54
  4. Step 4: Simplify right side
    3,115.80x = 9,708,426.70
  5. Step 5: Solve for x
    x = 9,708,426.70/3,115.80
  6. Step 6: Final answer
    x = 3,115.87

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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.