Home / 3,471.24-4,789.96-1,979.07

Finding the Fourth Proportional to 3,471.24, 4,789.96 and 1,979.07

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Solution

The fourth proportional to 3,471.24, 4,789.96 and 1,979.07 is: 2,730.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.24 : 4,789.96 = 1,979.07 : x
  2. Step 2: Convert to fraction form
    3,471.24/4,789.96 = 1,979.07/x
  3. Step 3: Cross multiply
    3,471.24x = 4,789.96 × 1,979.07
  4. Step 4: Simplify right side
    3,471.24x = 9,479,661.19
  5. Step 5: Solve for x
    x = 9,479,661.19/3,471.24
  6. Step 6: Final answer
    x = 2,730.91

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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.