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Finding the Fourth Proportional to 4,949.33, 7,422.84 and 1,439.33

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Solution

The fourth proportional to 4,949.33, 7,422.84 and 1,439.33 is: 2,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949.33 : 7,422.84 = 1,439.33 : x
  2. Step 2: Convert to fraction form
    4,949.33/7,422.84 = 1,439.33/x
  3. Step 3: Cross multiply
    4,949.33x = 7,422.84 × 1,439.33
  4. Step 4: Simplify right side
    4,949.33x = 10,683,879.18
  5. Step 5: Solve for x
    x = 10,683,879.18/4,949.33
  6. Step 6: Final answer
    x = 2,158.65

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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.