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Finding the Fourth Proportional to 6,099.99, 9,147.39 and 1,938.88

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Solution

The fourth proportional to 6,099.99, 9,147.39 and 1,938.88 is: 2,907.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,099.99 : 9,147.39 = 1,938.88 : x
  2. Step 2: Convert to fraction form
    6,099.99/9,147.39 = 1,938.88/x
  3. Step 3: Cross multiply
    6,099.99x = 9,147.39 × 1,938.88
  4. Step 4: Simplify right side
    6,099.99x = 17,735,691.52
  5. Step 5: Solve for x
    x = 17,735,691.52/6,099.99
  6. Step 6: Final answer
    x = 2,907.50

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Double scale
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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.