Home / 5,116.72-7,060.57-2,878.55

Finding the Fourth Proportional to 5,116.72, 7,060.57 and 2,878.55

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Solution

The fourth proportional to 5,116.72, 7,060.57 and 2,878.55 is: 3,972.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.72 : 7,060.57 = 2,878.55 : x
  2. Step 2: Convert to fraction form
    5,116.72/7,060.57 = 2,878.55/x
  3. Step 3: Cross multiply
    5,116.72x = 7,060.57 × 2,878.55
  4. Step 4: Simplify right side
    5,116.72x = 20,324,154.08
  5. Step 5: Solve for x
    x = 20,324,154.08/5,116.72
  6. Step 6: Final answer
    x = 3,972.11

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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.