Home / 3,122.42-4,306.79-2,226.06

Finding the Fourth Proportional to 3,122.42, 4,306.79 and 2,226.06

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Solution

The fourth proportional to 3,122.42, 4,306.79 and 2,226.06 is: 3,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.42 : 4,306.79 = 2,226.06 : x
  2. Step 2: Convert to fraction form
    3,122.42/4,306.79 = 2,226.06/x
  3. Step 3: Cross multiply
    3,122.42x = 4,306.79 × 2,226.06
  4. Step 4: Simplify right side
    3,122.42x = 9,587,178.51
  5. Step 5: Solve for x
    x = 9,587,178.51/3,122.42
  6. Step 6: Final answer
    x = 3,070.43

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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.