Home / 3,951.21-5,452.47-2,182.77

Finding the Fourth Proportional to 3,951.21, 5,452.47 and 2,182.77

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Solution

The fourth proportional to 3,951.21, 5,452.47 and 2,182.77 is: 3,012.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.21 : 5,452.47 = 2,182.77 : x
  2. Step 2: Convert to fraction form
    3,951.21/5,452.47 = 2,182.77/x
  3. Step 3: Cross multiply
    3,951.21x = 5,452.47 × 2,182.77
  4. Step 4: Simplify right side
    3,951.21x = 11,901,487.94
  5. Step 5: Solve for x
    x = 11,901,487.94/3,951.21
  6. Step 6: Final answer
    x = 3,012.11

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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.