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Finding the Fourth Proportional to 6,433.70, 8,878.74 and 3,744.70

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Solution

The fourth proportional to 6,433.70, 8,878.74 and 3,744.70 is: 5,167.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,433.70 : 8,878.74 = 3,744.70 : x
  2. Step 2: Convert to fraction form
    6,433.70/8,878.74 = 3,744.70/x
  3. Step 3: Cross multiply
    6,433.70x = 8,878.74 × 3,744.70
  4. Step 4: Simplify right side
    6,433.70x = 33,248,217.68
  5. Step 5: Solve for x
    x = 33,248,217.68/6,433.70
  6. Step 6: Final answer
    x = 5,167.82

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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.