Home / 4,991.28-6,886.80-3,001.92

Finding the Fourth Proportional to 4,991.28, 6,886.80 and 3,001.92

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Solution

The fourth proportional to 4,991.28, 6,886.80 and 3,001.92 is: 4,141.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.28 : 6,886.80 = 3,001.92 : x
  2. Step 2: Convert to fraction form
    4,991.28/6,886.80 = 3,001.92/x
  3. Step 3: Cross multiply
    4,991.28x = 6,886.80 × 3,001.92
  4. Step 4: Simplify right side
    4,991.28x = 20,673,622.66
  5. Step 5: Solve for x
    x = 20,673,622.66/4,991.28
  6. Step 6: Final answer
    x = 4,141.95

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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.