Home / 2,226.38-3,070.92-1,429.88

Finding the Fourth Proportional to 2,226.38, 3,070.92 and 1,429.88

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Solution

The fourth proportional to 2,226.38, 3,070.92 and 1,429.88 is: 1,972.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.38 : 3,070.92 = 1,429.88 : x
  2. Step 2: Convert to fraction form
    2,226.38/3,070.92 = 1,429.88/x
  3. Step 3: Cross multiply
    2,226.38x = 3,070.92 × 1,429.88
  4. Step 4: Simplify right side
    2,226.38x = 4,391,047.09
  5. Step 5: Solve for x
    x = 4,391,047.09/2,226.38
  6. Step 6: Final answer
    x = 1,972.28

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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.