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Finding the Fourth Proportional to 5,641.32, 8,463.78 and 1,943.75

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Solution

The fourth proportional to 5,641.32, 8,463.78 and 1,943.75 is: 2,916.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,641.32 : 8,463.78 = 1,943.75 : x
  2. Step 2: Convert to fraction form
    5,641.32/8,463.78 = 1,943.75/x
  3. Step 3: Cross multiply
    5,641.32x = 8,463.78 × 1,943.75
  4. Step 4: Simplify right side
    5,641.32x = 16,451,493.53
  5. Step 5: Solve for x
    x = 16,451,493.53/5,641.32
  6. Step 6: Final answer
    x = 2,916.25

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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.