Home / 2,251.72-3,109.62-2,247.40

Finding the Fourth Proportional to 2,251.72, 3,109.62 and 2,247.40

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Solution

The fourth proportional to 2,251.72, 3,109.62 and 2,247.40 is: 3,103.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.72 : 3,109.62 = 2,247.40 : x
  2. Step 2: Convert to fraction form
    2,251.72/3,109.62 = 2,247.40/x
  3. Step 3: Cross multiply
    2,251.72x = 3,109.62 × 2,247.40
  4. Step 4: Simplify right side
    2,251.72x = 6,988,559.99
  5. Step 5: Solve for x
    x = 6,988,559.99/2,251.72
  6. Step 6: Final answer
    x = 3,103.65

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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.