Home / 2,233.62-3,082.20-1,238.90

Finding the Fourth Proportional to 2,233.62, 3,082.20 and 1,238.90

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Solution

The fourth proportional to 2,233.62, 3,082.20 and 1,238.90 is: 1,709.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,233.62 : 3,082.20 = 1,238.90 : x
  2. Step 2: Convert to fraction form
    2,233.62/3,082.20 = 1,238.90/x
  3. Step 3: Cross multiply
    2,233.62x = 3,082.20 × 1,238.90
  4. Step 4: Simplify right side
    2,233.62x = 3,818,526.19
  5. Step 5: Solve for x
    x = 3,818,526.19/2,233.62
  6. Step 6: Final answer
    x = 1,709.57

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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.