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Finding the Fourth Proportional to 2,242.19, 3,363.29 and 682.20

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Solution

The fourth proportional to 2,242.19, 3,363.29 and 682.20 is: 1,023.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,242.19 : 3,363.29 = 682.20 : x
  2. Step 2: Convert to fraction form
    2,242.19/3,363.29 = 682.20/x
  3. Step 3: Cross multiply
    2,242.19x = 3,363.29 × 682.20
  4. Step 4: Simplify right side
    2,242.19x = 2,294,433.03
  5. Step 5: Solve for x
    x = 2,294,433.03/2,242.19
  6. Step 6: Final answer
    x = 1,023.30

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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.