Home / 3,877.20-5,350.56-2,305.31

Finding the Fourth Proportional to 3,877.20, 5,350.56 and 2,305.31

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Solution

The fourth proportional to 3,877.20, 5,350.56 and 2,305.31 is: 3,181.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.20 : 5,350.56 = 2,305.31 : x
  2. Step 2: Convert to fraction form
    3,877.20/5,350.56 = 2,305.31/x
  3. Step 3: Cross multiply
    3,877.20x = 5,350.56 × 2,305.31
  4. Step 4: Simplify right side
    3,877.20x = 12,334,661.19
  5. Step 5: Solve for x
    x = 12,334,661.19/3,877.20
  6. Step 6: Final answer
    x = 3,181.33

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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.