Home / 1,781.23-2,457.62-1,082.11

Finding the Fourth Proportional to 1,781.23, 2,457.62 and 1,082.11

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Solution

The fourth proportional to 1,781.23, 2,457.62 and 1,082.11 is: 1,493.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.23 : 2,457.62 = 1,082.11 : x
  2. Step 2: Convert to fraction form
    1,781.23/2,457.62 = 1,082.11/x
  3. Step 3: Cross multiply
    1,781.23x = 2,457.62 × 1,082.11
  4. Step 4: Simplify right side
    1,781.23x = 2,659,409.77
  5. Step 5: Solve for x
    x = 2,659,409.77/1,781.23
  6. Step 6: Final answer
    x = 1,493.02

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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.