Home / 1,781.10-2,457.51-1,082.46

Finding the Fourth Proportional to 1,781.10, 2,457.51 and 1,082.46

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Solution

The fourth proportional to 1,781.10, 2,457.51 and 1,082.46 is: 1,493.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.10 : 2,457.51 = 1,082.46 : x
  2. Step 2: Convert to fraction form
    1,781.10/2,457.51 = 1,082.46/x
  3. Step 3: Cross multiply
    1,781.10x = 2,457.51 × 1,082.46
  4. Step 4: Simplify right side
    1,781.10x = 2,660,156.27
  5. Step 5: Solve for x
    x = 2,660,156.27/1,781.10
  6. Step 6: Final answer
    x = 1,493.55

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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.