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Finding the Fourth Proportional to 7,221.99, 10,834.33 and 2,290.30

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Solution

The fourth proportional to 7,221.99, 10,834.33 and 2,290.30 is: 3,435.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.99 : 10,834.33 = 2,290.30 : x
  2. Step 2: Convert to fraction form
    7,221.99/10,834.33 = 2,290.30/x
  3. Step 3: Cross multiply
    7,221.99x = 10,834.33 × 2,290.30
  4. Step 4: Simplify right side
    7,221.99x = 24,813,866.00
  5. Step 5: Solve for x
    x = 24,813,866.00/7,221.99
  6. Step 6: Final answer
    x = 3,435.88

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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.