Home / 4,261-6,387.42-2,180.20

Finding the Fourth Proportional to 4,261, 6,387.42 and 2,180.20

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Solution

The fourth proportional to 4,261, 6,387.42 and 2,180.20 is: 3,268.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261 : 6,387.42 = 2,180.20 : x
  2. Step 2: Convert to fraction form
    4,261/6,387.42 = 2,180.20/x
  3. Step 3: Cross multiply
    4,261x = 6,387.42 × 2,180.20
  4. Step 4: Simplify right side
    4,261x = 13,925,853.08
  5. Step 5: Solve for x
    x = 13,925,853.08/4,261
  6. Step 6: Final answer
    x = 3,268.21

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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.