Home / 4,976.71-6,866.10-2,986.88

Finding the Fourth Proportional to 4,976.71, 6,866.10 and 2,986.88

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Solution

The fourth proportional to 4,976.71, 6,866.10 and 2,986.88 is: 4,120.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976.71 : 6,866.10 = 2,986.88 : x
  2. Step 2: Convert to fraction form
    4,976.71/6,866.10 = 2,986.88/x
  3. Step 3: Cross multiply
    4,976.71x = 6,866.10 × 2,986.88
  4. Step 4: Simplify right side
    4,976.71x = 20,508,182.44
  5. Step 5: Solve for x
    x = 20,508,182.44/4,976.71
  6. Step 6: Final answer
    x = 4,120.83

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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.