Home / 7,899.80-11,849.72-2,355.12

Finding the Fourth Proportional to 7,899.80, 11,849.72 and 2,355.12

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Solution

The fourth proportional to 7,899.80, 11,849.72 and 2,355.12 is: 3,532.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.80 : 11,849.72 = 2,355.12 : x
  2. Step 2: Convert to fraction form
    7,899.80/11,849.72 = 2,355.12/x
  3. Step 3: Cross multiply
    7,899.80x = 11,849.72 × 2,355.12
  4. Step 4: Simplify right side
    7,899.80x = 27,907,500.79
  5. Step 5: Solve for x
    x = 27,907,500.79/7,899.80
  6. Step 6: Final answer
    x = 3,532.69

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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.