Home / 7,428.83-11,144.64-2,986.83

Finding the Fourth Proportional to 7,428.83, 11,144.64 and 2,986.83

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Solution

The fourth proportional to 7,428.83, 11,144.64 and 2,986.83 is: 4,480.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.83 : 11,144.64 = 2,986.83 : x
  2. Step 2: Convert to fraction form
    7,428.83/11,144.64 = 2,986.83/x
  3. Step 3: Cross multiply
    7,428.83x = 11,144.64 × 2,986.83
  4. Step 4: Simplify right side
    7,428.83x = 33,287,145.09
  5. Step 5: Solve for x
    x = 33,287,145.09/7,428.83
  6. Step 6: Final answer
    x = 4,480.81

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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.