Home / 4,255.96-6,387.89-2,177.45

Finding the Fourth Proportional to 4,255.96, 6,387.89 and 2,177.45

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Solution

The fourth proportional to 4,255.96, 6,387.89 and 2,177.45 is: 3,268.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.96 : 6,387.89 = 2,177.45 : x
  2. Step 2: Convert to fraction form
    4,255.96/6,387.89 = 2,177.45/x
  3. Step 3: Cross multiply
    4,255.96x = 6,387.89 × 2,177.45
  4. Step 4: Simplify right side
    4,255.96x = 13,909,327.05
  5. Step 5: Solve for x
    x = 13,909,327.05/4,255.96
  6. Step 6: Final answer
    x = 3,268.20

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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.