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Finding the Fourth Proportional to 4,478.67, 6,716.25 and 2,630.25

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Solution

The fourth proportional to 4,478.67, 6,716.25 and 2,630.25 is: 3,944.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.67 : 6,716.25 = 2,630.25 : x
  2. Step 2: Convert to fraction form
    4,478.67/6,716.25 = 2,630.25/x
  3. Step 3: Cross multiply
    4,478.67x = 6,716.25 × 2,630.25
  4. Step 4: Simplify right side
    4,478.67x = 17,665,416.56
  5. Step 5: Solve for x
    x = 17,665,416.56/4,478.67
  6. Step 6: Final answer
    x = 3,944.34

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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.