Home / 2,769.12-4,144.10-2,609.20

Finding the Fourth Proportional to 2,769.12, 4,144.10 and 2,609.20

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Solution

The fourth proportional to 2,769.12, 4,144.10 and 2,609.20 is: 3,904.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.12 : 4,144.10 = 2,609.20 : x
  2. Step 2: Convert to fraction form
    2,769.12/4,144.10 = 2,609.20/x
  3. Step 3: Cross multiply
    2,769.12x = 4,144.10 × 2,609.20
  4. Step 4: Simplify right side
    2,769.12x = 10,812,785.72
  5. Step 5: Solve for x
    x = 10,812,785.72/2,769.12
  6. Step 6: Final answer
    x = 3,904.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.