Home / 1,921.92-2,652.10-1,082.46

Finding the Fourth Proportional to 1,921.92, 2,652.10 and 1,082.46

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Solution

The fourth proportional to 1,921.92, 2,652.10 and 1,082.46 is: 1,493.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.92 : 2,652.10 = 1,082.46 : x
  2. Step 2: Convert to fraction form
    1,921.92/2,652.10 = 1,082.46/x
  3. Step 3: Cross multiply
    1,921.92x = 2,652.10 × 1,082.46
  4. Step 4: Simplify right side
    1,921.92x = 2,870,792.17
  5. Step 5: Solve for x
    x = 2,870,792.17/1,921.92
  6. Step 6: Final answer
    x = 1,493.71

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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.