Home / 3,161.22-4,363.68-2,487.28

Finding the Fourth Proportional to 3,161.22, 4,363.68 and 2,487.28

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Solution

The fourth proportional to 3,161.22, 4,363.68 and 2,487.28 is: 3,433.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.22 : 4,363.68 = 2,487.28 : x
  2. Step 2: Convert to fraction form
    3,161.22/4,363.68 = 2,487.28/x
  3. Step 3: Cross multiply
    3,161.22x = 4,363.68 × 2,487.28
  4. Step 4: Simplify right side
    3,161.22x = 10,853,693.99
  5. Step 5: Solve for x
    x = 10,853,693.99/3,161.22
  6. Step 6: Final answer
    x = 3,433.39

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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.