Home / 4,161.31-6,241.59-1,387.87

Finding the Fourth Proportional to 4,161.31, 6,241.59 and 1,387.87

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Solution

The fourth proportional to 4,161.31, 6,241.59 and 1,387.87 is: 2,081.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,161.31 : 6,241.59 = 1,387.87 : x
  2. Step 2: Convert to fraction form
    4,161.31/6,241.59 = 1,387.87/x
  3. Step 3: Cross multiply
    4,161.31x = 6,241.59 × 1,387.87
  4. Step 4: Simplify right side
    4,161.31x = 8,662,499.91
  5. Step 5: Solve for x
    x = 8,662,499.91/4,161.31
  6. Step 6: Final answer
    x = 2,081.68

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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.