Home / 7,380.87-11,068.05-2,114.69

Finding the Fourth Proportional to 7,380.87, 11,068.05 and 2,114.69

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Solution

The fourth proportional to 7,380.87, 11,068.05 and 2,114.69 is: 3,171.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.87 : 11,068.05 = 2,114.69 : x
  2. Step 2: Convert to fraction form
    7,380.87/11,068.05 = 2,114.69/x
  3. Step 3: Cross multiply
    7,380.87x = 11,068.05 × 2,114.69
  4. Step 4: Simplify right side
    7,380.87x = 23,405,439.31
  5. Step 5: Solve for x
    x = 23,405,439.31/7,380.87
  6. Step 6: Final answer
    x = 3,171.09

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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.