Home / 2,311.43-3,461.68-1,821.18

Finding the Fourth Proportional to 2,311.43, 3,461.68 and 1,821.18

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Solution

The fourth proportional to 2,311.43, 3,461.68 and 1,821.18 is: 2,727.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.43 : 3,461.68 = 1,821.18 : x
  2. Step 2: Convert to fraction form
    2,311.43/3,461.68 = 1,821.18/x
  3. Step 3: Cross multiply
    2,311.43x = 3,461.68 × 1,821.18
  4. Step 4: Simplify right side
    2,311.43x = 6,304,333.28
  5. Step 5: Solve for x
    x = 6,304,333.28/2,311.43
  6. Step 6: Final answer
    x = 2,727.46

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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.