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Finding the Fourth Proportional to 2,455.62, 3,684.12 and 724.26

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Solution

The fourth proportional to 2,455.62, 3,684.12 and 724.26 is: 1,086.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.62 : 3,684.12 = 724.26 : x
  2. Step 2: Convert to fraction form
    2,455.62/3,684.12 = 724.26/x
  3. Step 3: Cross multiply
    2,455.62x = 3,684.12 × 724.26
  4. Step 4: Simplify right side
    2,455.62x = 2,668,260.75
  5. Step 5: Solve for x
    x = 2,668,260.75/2,455.62
  6. Step 6: Final answer
    x = 1,086.59

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1.5x scale

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.