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Finding the Fourth Proportional to 5,245.08, 7,860.04 and 3,947.48

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Solution

The fourth proportional to 5,245.08, 7,860.04 and 3,947.48 is: 5,915.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.08 : 7,860.04 = 3,947.48 : x
  2. Step 2: Convert to fraction form
    5,245.08/7,860.04 = 3,947.48/x
  3. Step 3: Cross multiply
    5,245.08x = 7,860.04 × 3,947.48
  4. Step 4: Simplify right side
    5,245.08x = 31,027,350.70
  5. Step 5: Solve for x
    x = 31,027,350.70/5,245.08
  6. Step 6: Final answer
    x = 5,915.52

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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.