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Finding the Fourth Proportional to 5,377.56, 8,069.10 and 2,641.56

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Solution

The fourth proportional to 5,377.56, 8,069.10 and 2,641.56 is: 3,963.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.56 : 8,069.10 = 2,641.56 : x
  2. Step 2: Convert to fraction form
    5,377.56/8,069.10 = 2,641.56/x
  3. Step 3: Cross multiply
    5,377.56x = 8,069.10 × 2,641.56
  4. Step 4: Simplify right side
    5,377.56x = 21,315,011.80
  5. Step 5: Solve for x
    x = 21,315,011.80/5,377.56
  6. Step 6: Final answer
    x = 3,963.70

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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.