Home / 3,375.42-4,658.68-2,117.56

Finding the Fourth Proportional to 3,375.42, 4,658.68 and 2,117.56

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Solution

The fourth proportional to 3,375.42, 4,658.68 and 2,117.56 is: 2,922.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.42 : 4,658.68 = 2,117.56 : x
  2. Step 2: Convert to fraction form
    3,375.42/4,658.68 = 2,117.56/x
  3. Step 3: Cross multiply
    3,375.42x = 4,658.68 × 2,117.56
  4. Step 4: Simplify right side
    3,375.42x = 9,865,034.42
  5. Step 5: Solve for x
    x = 9,865,034.42/3,375.42
  6. Step 6: Final answer
    x = 2,922.61

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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.