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Finding the Fourth Proportional to 2,660.22, 3,984.90 and 1,343.16

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Solution

The fourth proportional to 2,660.22, 3,984.90 and 1,343.16 is: 2,012.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.22 : 3,984.90 = 1,343.16 : x
  2. Step 2: Convert to fraction form
    2,660.22/3,984.90 = 1,343.16/x
  3. Step 3: Cross multiply
    2,660.22x = 3,984.90 × 1,343.16
  4. Step 4: Simplify right side
    2,660.22x = 5,352,358.28
  5. Step 5: Solve for x
    x = 5,352,358.28/2,660.22
  6. Step 6: Final answer
    x = 2,012.00

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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.