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Finding the Fourth Proportional to 4,747.94, 7,079.15 and 4,352.75

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Solution

The fourth proportional to 4,747.94, 7,079.15 and 4,352.75 is: 6,489.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.94 : 7,079.15 = 4,352.75 : x
  2. Step 2: Convert to fraction form
    4,747.94/7,079.15 = 4,352.75/x
  3. Step 3: Cross multiply
    4,747.94x = 7,079.15 × 4,352.75
  4. Step 4: Simplify right side
    4,747.94x = 30,813,745.65
  5. Step 5: Solve for x
    x = 30,813,745.65/4,747.94
  6. Step 6: Final answer
    x = 6,489.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.