Home / 2,306.42-3,181.92-1,608.20

Finding the Fourth Proportional to 2,306.42, 3,181.92 and 1,608.20

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Solution

The fourth proportional to 2,306.42, 3,181.92 and 1,608.20 is: 2,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.42 : 3,181.92 = 1,608.20 : x
  2. Step 2: Convert to fraction form
    2,306.42/3,181.92 = 1,608.20/x
  3. Step 3: Cross multiply
    2,306.42x = 3,181.92 × 1,608.20
  4. Step 4: Simplify right side
    2,306.42x = 5,117,163.74
  5. Step 5: Solve for x
    x = 5,117,163.74/2,306.42
  6. Step 6: Final answer
    x = 2,218.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.