Home / 2,044.18-3,066.63-811.78

Finding the Fourth Proportional to 2,044.18, 3,066.63 and 811.78

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Solution

The fourth proportional to 2,044.18, 3,066.63 and 811.78 is: 1,217.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,044.18 : 3,066.63 = 811.78 : x
  2. Step 2: Convert to fraction form
    2,044.18/3,066.63 = 811.78/x
  3. Step 3: Cross multiply
    2,044.18x = 3,066.63 × 811.78
  4. Step 4: Simplify right side
    2,044.18x = 2,489,428.90
  5. Step 5: Solve for x
    x = 2,489,428.90/2,044.18
  6. Step 6: Final answer
    x = 1,217.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.