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Finding the Fourth Proportional to 7,238.97, 10,860.08 and 3,079.12

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Solution

The fourth proportional to 7,238.97, 10,860.08 and 3,079.12 is: 4,619.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.97 : 10,860.08 = 3,079.12 : x
  2. Step 2: Convert to fraction form
    7,238.97/10,860.08 = 3,079.12/x
  3. Step 3: Cross multiply
    7,238.97x = 10,860.08 × 3,079.12
  4. Step 4: Simplify right side
    7,238.97x = 33,439,489.53
  5. Step 5: Solve for x
    x = 33,439,489.53/7,238.97
  6. Step 6: Final answer
    x = 4,619.37

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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.