Home / 3,877.34-5,350.87-2,221.66

Finding the Fourth Proportional to 3,877.34, 5,350.87 and 2,221.66

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Solution

The fourth proportional to 3,877.34, 5,350.87 and 2,221.66 is: 3,065.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.34 : 5,350.87 = 2,221.66 : x
  2. Step 2: Convert to fraction form
    3,877.34/5,350.87 = 2,221.66/x
  3. Step 3: Cross multiply
    3,877.34x = 5,350.87 × 2,221.66
  4. Step 4: Simplify right side
    3,877.34x = 11,887,813.84
  5. Step 5: Solve for x
    x = 11,887,813.84/3,877.34
  6. Step 6: Final answer
    x = 3,065.97

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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.