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Finding the Fourth Proportional to 2,776.44, 4,164.90 and 724.44

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Solution

The fourth proportional to 2,776.44, 4,164.90 and 724.44 is: 1,086.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.44 : 4,164.90 = 724.44 : x
  2. Step 2: Convert to fraction form
    2,776.44/4,164.90 = 724.44/x
  3. Step 3: Cross multiply
    2,776.44x = 4,164.90 × 724.44
  4. Step 4: Simplify right side
    2,776.44x = 3,017,220.16
  5. Step 5: Solve for x
    x = 3,017,220.16/2,776.44
  6. Step 6: Final answer
    x = 1,086.72

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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.