Home / 4,122.20-5,688.65-2,233.78

Finding the Fourth Proportional to 4,122.20, 5,688.65 and 2,233.78

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Solution

The fourth proportional to 4,122.20, 5,688.65 and 2,233.78 is: 3,082.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.20 : 5,688.65 = 2,233.78 : x
  2. Step 2: Convert to fraction form
    4,122.20/5,688.65 = 2,233.78/x
  3. Step 3: Cross multiply
    4,122.20x = 5,688.65 × 2,233.78
  4. Step 4: Simplify right side
    4,122.20x = 12,707,192.60
  5. Step 5: Solve for x
    x = 12,707,192.60/4,122.20
  6. Step 6: Final answer
    x = 3,082.63

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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.