Home / 4,976.12-6,867.10-2,738.20

Finding the Fourth Proportional to 4,976.12, 6,867.10 and 2,738.20

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Solution

The fourth proportional to 4,976.12, 6,867.10 and 2,738.20 is: 3,778.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976.12 : 6,867.10 = 2,738.20 : x
  2. Step 2: Convert to fraction form
    4,976.12/6,867.10 = 2,738.20/x
  3. Step 3: Cross multiply
    4,976.12x = 6,867.10 × 2,738.20
  4. Step 4: Simplify right side
    4,976.12x = 18,803,493.22
  5. Step 5: Solve for x
    x = 18,803,493.22/4,976.12
  6. Step 6: Final answer
    x = 3,778.75

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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.