Home / 5,116.42-7,060.92-2,878.66

Finding the Fourth Proportional to 5,116.42, 7,060.92 and 2,878.66

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Solution

The fourth proportional to 5,116.42, 7,060.92 and 2,878.66 is: 3,972.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.42 : 7,060.92 = 2,878.66 : x
  2. Step 2: Convert to fraction form
    5,116.42/7,060.92 = 2,878.66/x
  3. Step 3: Cross multiply
    5,116.42x = 7,060.92 × 2,878.66
  4. Step 4: Simplify right side
    5,116.42x = 20,325,987.97
  5. Step 5: Solve for x
    x = 20,325,987.97/5,116.42
  6. Step 6: Final answer
    x = 3,972.70

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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.