Home / 3,853.55-5,314.88-2,791.47

Finding the Fourth Proportional to 3,853.55, 5,314.88 and 2,791.47

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Solution

The fourth proportional to 3,853.55, 5,314.88 and 2,791.47 is: 3,850.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.55 : 5,314.88 = 2,791.47 : x
  2. Step 2: Convert to fraction form
    3,853.55/5,314.88 = 2,791.47/x
  3. Step 3: Cross multiply
    3,853.55x = 5,314.88 × 2,791.47
  4. Step 4: Simplify right side
    3,853.55x = 14,836,354.98
  5. Step 5: Solve for x
    x = 14,836,354.98/3,853.55
  6. Step 6: Final answer
    x = 3,850.05

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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.