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Finding the Fourth Proportional to 4,895.78, 6,754.41 and 3,218.11

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Solution

The fourth proportional to 4,895.78, 6,754.41 and 3,218.11 is: 4,439.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,895.78 : 6,754.41 = 3,218.11 : x
  2. Step 2: Convert to fraction form
    4,895.78/6,754.41 = 3,218.11/x
  3. Step 3: Cross multiply
    4,895.78x = 6,754.41 × 3,218.11
  4. Step 4: Simplify right side
    4,895.78x = 21,736,434.37
  5. Step 5: Solve for x
    x = 21,736,434.37/4,895.78
  6. Step 6: Final answer
    x = 4,439.83

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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.