Home / 2,809.27-3,876.33-1,630.11

Finding the Fourth Proportional to 2,809.27, 3,876.33 and 1,630.11

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Solution

The fourth proportional to 2,809.27, 3,876.33 and 1,630.11 is: 2,249.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.27 : 3,876.33 = 1,630.11 : x
  2. Step 2: Convert to fraction form
    2,809.27/3,876.33 = 1,630.11/x
  3. Step 3: Cross multiply
    2,809.27x = 3,876.33 × 1,630.11
  4. Step 4: Simplify right side
    2,809.27x = 6,318,844.30
  5. Step 5: Solve for x
    x = 6,318,844.30/2,809.27
  6. Step 6: Final answer
    x = 2,249.28

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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.