Home / 5,016.49-6,921.05-2,891.96

Finding the Fourth Proportional to 5,016.49, 6,921.05 and 2,891.96

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Solution

The fourth proportional to 5,016.49, 6,921.05 and 2,891.96 is: 3,989.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,016.49 : 6,921.05 = 2,891.96 : x
  2. Step 2: Convert to fraction form
    5,016.49/6,921.05 = 2,891.96/x
  3. Step 3: Cross multiply
    5,016.49x = 6,921.05 × 2,891.96
  4. Step 4: Simplify right side
    5,016.49x = 20,015,392.91
  5. Step 5: Solve for x
    x = 20,015,392.91/5,016.49
  6. Step 6: Final answer
    x = 3,989.92

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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.