Home / 7,311.19-10,975.85-4,861.75

Finding the Fourth Proportional to 7,311.19, 10,975.85 and 4,861.75

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Solution

The fourth proportional to 7,311.19, 10,975.85 and 4,861.75 is: 7,298.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.19 : 10,975.85 = 4,861.75 : x
  2. Step 2: Convert to fraction form
    7,311.19/10,975.85 = 4,861.75/x
  3. Step 3: Cross multiply
    7,311.19x = 10,975.85 × 4,861.75
  4. Step 4: Simplify right side
    7,311.19x = 53,361,759.55
  5. Step 5: Solve for x
    x = 53,361,759.55/7,311.19
  6. Step 6: Final answer
    x = 7,298.65

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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.