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Finding the Fourth Proportional to 6,411.41, 8,847.66 and 3,578.70

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Solution

The fourth proportional to 6,411.41, 8,847.66 and 3,578.70 is: 4,938.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,411.41 : 8,847.66 = 3,578.70 : x
  2. Step 2: Convert to fraction form
    6,411.41/8,847.66 = 3,578.70/x
  3. Step 3: Cross multiply
    6,411.41x = 8,847.66 × 3,578.70
  4. Step 4: Simplify right side
    6,411.41x = 31,663,120.84
  5. Step 5: Solve for x
    x = 31,663,120.84/6,411.41
  6. Step 6: Final answer
    x = 4,938.56

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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.