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Finding the Fourth Proportional to 4,872.71, 6,724.40 and 2,776.97

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Solution

The fourth proportional to 4,872.71, 6,724.40 and 2,776.97 is: 3,832.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.71 : 6,724.40 = 2,776.97 : x
  2. Step 2: Convert to fraction form
    4,872.71/6,724.40 = 2,776.97/x
  3. Step 3: Cross multiply
    4,872.71x = 6,724.40 × 2,776.97
  4. Step 4: Simplify right side
    4,872.71x = 18,673,409.56
  5. Step 5: Solve for x
    x = 18,673,409.56/4,872.71
  6. Step 6: Final answer
    x = 3,832.25

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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.