Home / 3,480.24-4,789.56-2,769.72

Finding the Fourth Proportional to 3,480.24, 4,789.56 and 2,769.72

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Solution

The fourth proportional to 3,480.24, 4,789.56 and 2,769.72 is: 3,811.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.24 : 4,789.56 = 2,769.72 : x
  2. Step 2: Convert to fraction form
    3,480.24/4,789.56 = 2,769.72/x
  3. Step 3: Cross multiply
    3,480.24x = 4,789.56 × 2,769.72
  4. Step 4: Simplify right side
    3,480.24x = 13,265,740.12
  5. Step 5: Solve for x
    x = 13,265,740.12/3,480.24
  6. Step 6: Final answer
    x = 3,811.73

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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.