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Finding the Fourth Proportional to 7,321.95, 10,101.83 and 4,134.80

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Solution

The fourth proportional to 7,321.95, 10,101.83 and 4,134.80 is: 5,704.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.95 : 10,101.83 = 4,134.80 : x
  2. Step 2: Convert to fraction form
    7,321.95/10,101.83 = 4,134.80/x
  3. Step 3: Cross multiply
    7,321.95x = 10,101.83 × 4,134.80
  4. Step 4: Simplify right side
    7,321.95x = 41,768,975.50
  5. Step 5: Solve for x
    x = 41,768,975.50/7,321.95
  6. Step 6: Final answer
    x = 5,704.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.