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Finding the Fourth Proportional to 3,771.31, 5,649.44 and 2,945.71

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Solution

The fourth proportional to 3,771.31, 5,649.44 and 2,945.71 is: 4,412.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.31 : 5,649.44 = 2,945.71 : x
  2. Step 2: Convert to fraction form
    3,771.31/5,649.44 = 2,945.71/x
  3. Step 3: Cross multiply
    3,771.31x = 5,649.44 × 2,945.71
  4. Step 4: Simplify right side
    3,771.31x = 16,641,597.17
  5. Step 5: Solve for x
    x = 16,641,597.17/3,771.31
  6. Step 6: Final answer
    x = 4,412.69

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1.5x scale

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.