Home / 6,679.12-10,016.16-2,781.40

Finding the Fourth Proportional to 6,679.12, 10,016.16 and 2,781.40

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Solution

The fourth proportional to 6,679.12, 10,016.16 and 2,781.40 is: 4,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.12 : 10,016.16 = 2,781.40 : x
  2. Step 2: Convert to fraction form
    6,679.12/10,016.16 = 2,781.40/x
  3. Step 3: Cross multiply
    6,679.12x = 10,016.16 × 2,781.40
  4. Step 4: Simplify right side
    6,679.12x = 27,858,947.42
  5. Step 5: Solve for x
    x = 27,858,947.42/6,679.12
  6. Step 6: Final answer
    x = 4,171.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.