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Finding the Fourth Proportional to 2,334.80, 3,502.20 and 2,318.60

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Solution

The fourth proportional to 2,334.80, 3,502.20 and 2,318.60 is: 3,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.80 : 3,502.20 = 2,318.60 : x
  2. Step 2: Convert to fraction form
    2,334.80/3,502.20 = 2,318.60/x
  3. Step 3: Cross multiply
    2,334.80x = 3,502.20 × 2,318.60
  4. Step 4: Simplify right side
    2,334.80x = 8,120,200.92
  5. Step 5: Solve for x
    x = 8,120,200.92/2,334.80
  6. Step 6: Final answer
    x = 3,477.90

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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.