Home / 4,990.12-6,886.40-2,751.96

Finding the Fourth Proportional to 4,990.12, 6,886.40 and 2,751.96

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Solution

The fourth proportional to 4,990.12, 6,886.40 and 2,751.96 is: 3,797.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.12 : 6,886.40 = 2,751.96 : x
  2. Step 2: Convert to fraction form
    4,990.12/6,886.40 = 2,751.96/x
  3. Step 3: Cross multiply
    4,990.12x = 6,886.40 × 2,751.96
  4. Step 4: Simplify right side
    4,990.12x = 18,951,083.58
  5. Step 5: Solve for x
    x = 18,951,083.58/4,990.12
  6. Step 6: Final answer
    x = 3,797.72

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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.