Home / 2,249.30-3,105.70-1,366.30

Finding the Fourth Proportional to 2,249.30, 3,105.70 and 1,366.30

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Solution

The fourth proportional to 2,249.30, 3,105.70 and 1,366.30 is: 1,886.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,249.30 : 3,105.70 = 1,366.30 : x
  2. Step 2: Convert to fraction form
    2,249.30/3,105.70 = 1,366.30/x
  3. Step 3: Cross multiply
    2,249.30x = 3,105.70 × 1,366.30
  4. Step 4: Simplify right side
    2,249.30x = 4,243,317.91
  5. Step 5: Solve for x
    x = 4,243,317.91/2,249.30
  6. Step 6: Final answer
    x = 1,886.51

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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.