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Finding the Fourth Proportional to 4,879.04, 7,318.56 and 3,900.56

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Solution

The fourth proportional to 4,879.04, 7,318.56 and 3,900.56 is: 5,850.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.04 : 7,318.56 = 3,900.56 : x
  2. Step 2: Convert to fraction form
    4,879.04/7,318.56 = 3,900.56/x
  3. Step 3: Cross multiply
    4,879.04x = 7,318.56 × 3,900.56
  4. Step 4: Simplify right side
    4,879.04x = 28,546,482.39
  5. Step 5: Solve for x
    x = 28,546,482.39/4,879.04
  6. Step 6: Final answer
    x = 5,850.84

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Similar ratio
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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.