Home / 2,170.20-3,254.66-708.56

Finding the Fourth Proportional to 2,170.20, 3,254.66 and 708.56

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Solution

The fourth proportional to 2,170.20, 3,254.66 and 708.56 is: 1,062.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.20 : 3,254.66 = 708.56 : x
  2. Step 2: Convert to fraction form
    2,170.20/3,254.66 = 708.56/x
  3. Step 3: Cross multiply
    2,170.20x = 3,254.66 × 708.56
  4. Step 4: Simplify right side
    2,170.20x = 2,306,121.89
  5. Step 5: Solve for x
    x = 2,306,121.89/2,170.20
  6. Step 6: Final answer
    x = 1,062.63

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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.