Home / 3,979.91-5,999.66-3,712.31

Finding the Fourth Proportional to 3,979.91, 5,999.66 and 3,712.31

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Solution

The fourth proportional to 3,979.91, 5,999.66 and 3,712.31 is: 5,596.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.91 : 5,999.66 = 3,712.31 : x
  2. Step 2: Convert to fraction form
    3,979.91/5,999.66 = 3,712.31/x
  3. Step 3: Cross multiply
    3,979.91x = 5,999.66 × 3,712.31
  4. Step 4: Simplify right side
    3,979.91x = 22,272,585.67
  5. Step 5: Solve for x
    x = 22,272,585.67/3,979.91
  6. Step 6: Final answer
    x = 5,596.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.