Home / 2,241.20-3,363.14-781.37

Finding the Fourth Proportional to 2,241.20, 3,363.14 and 781.37

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Solution

The fourth proportional to 2,241.20, 3,363.14 and 781.37 is: 1,172.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,241.20 : 3,363.14 = 781.37 : x
  2. Step 2: Convert to fraction form
    2,241.20/3,363.14 = 781.37/x
  3. Step 3: Cross multiply
    2,241.20x = 3,363.14 × 781.37
  4. Step 4: Simplify right side
    2,241.20x = 2,627,856.70
  5. Step 5: Solve for x
    x = 2,627,856.70/2,241.20
  6. Step 6: Final answer
    x = 1,172.52

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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.