Home / 4,878.84-6,734.92-3,112.76

Finding the Fourth Proportional to 4,878.84, 6,734.92 and 3,112.76

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Solution

The fourth proportional to 4,878.84, 6,734.92 and 3,112.76 is: 4,296.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.84 : 6,734.92 = 3,112.76 : x
  2. Step 2: Convert to fraction form
    4,878.84/6,734.92 = 3,112.76/x
  3. Step 3: Cross multiply
    4,878.84x = 6,734.92 × 3,112.76
  4. Step 4: Simplify right side
    4,878.84x = 20,964,189.58
  5. Step 5: Solve for x
    x = 20,964,189.58/4,878.84
  6. Step 6: Final answer
    x = 4,296.96

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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.