Home / 4,879.15-7,301.71-3,991.39

Finding the Fourth Proportional to 4,879.15, 7,301.71 and 3,991.39

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Solution

The fourth proportional to 4,879.15, 7,301.71 and 3,991.39 is: 5,973.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.15 : 7,301.71 = 3,991.39 : x
  2. Step 2: Convert to fraction form
    4,879.15/7,301.71 = 3,991.39/x
  3. Step 3: Cross multiply
    4,879.15x = 7,301.71 × 3,991.39
  4. Step 4: Simplify right side
    4,879.15x = 29,143,959.01
  5. Step 5: Solve for x
    x = 29,143,959.01/4,879.15
  6. Step 6: Final answer
    x = 5,973.17

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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.