Home / 2,842.85-4,281.39-2,517.89

Finding the Fourth Proportional to 2,842.85, 4,281.39 and 2,517.89

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Solution

The fourth proportional to 2,842.85, 4,281.39 and 2,517.89 is: 3,791.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842.85 : 4,281.39 = 2,517.89 : x
  2. Step 2: Convert to fraction form
    2,842.85/4,281.39 = 2,517.89/x
  3. Step 3: Cross multiply
    2,842.85x = 4,281.39 × 2,517.89
  4. Step 4: Simplify right side
    2,842.85x = 10,780,047.66
  5. Step 5: Solve for x
    x = 10,780,047.66/2,842.85
  6. Step 6: Final answer
    x = 3,791.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.