Home / 4,979.16-6,871.77-3,091.95

Finding the Fourth Proportional to 4,979.16, 6,871.77 and 3,091.95

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Solution

The fourth proportional to 4,979.16, 6,871.77 and 3,091.95 is: 4,267.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.16 : 6,871.77 = 3,091.95 : x
  2. Step 2: Convert to fraction form
    4,979.16/6,871.77 = 3,091.95/x
  3. Step 3: Cross multiply
    4,979.16x = 6,871.77 × 3,091.95
  4. Step 4: Simplify right side
    4,979.16x = 21,247,169.25
  5. Step 5: Solve for x
    x = 21,247,169.25/4,979.16
  6. Step 6: Final answer
    x = 4,267.22

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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.