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Finding the Fourth Proportional to 2,439.45, 3,659.43 and 708.08

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Solution

The fourth proportional to 2,439.45, 3,659.43 and 708.08 is: 1,062.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.45 : 3,659.43 = 708.08 : x
  2. Step 2: Convert to fraction form
    2,439.45/3,659.43 = 708.08/x
  3. Step 3: Cross multiply
    2,439.45x = 3,659.43 × 708.08
  4. Step 4: Simplify right side
    2,439.45x = 2,591,150.90
  5. Step 5: Solve for x
    x = 2,591,150.90/2,439.45
  6. Step 6: Final answer
    x = 1,062.19

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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.