Home / 3,995.08-5,513.73-2,879.71

Finding the Fourth Proportional to 3,995.08, 5,513.73 and 2,879.71

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Solution

The fourth proportional to 3,995.08, 5,513.73 and 2,879.71 is: 3,974.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.08 : 5,513.73 = 2,879.71 : x
  2. Step 2: Convert to fraction form
    3,995.08/5,513.73 = 2,879.71/x
  3. Step 3: Cross multiply
    3,995.08x = 5,513.73 × 2,879.71
  4. Step 4: Simplify right side
    3,995.08x = 15,877,943.42
  5. Step 5: Solve for x
    x = 15,877,943.42/3,995.08
  6. Step 6: Final answer
    x = 3,974.37

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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.