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Finding the Fourth Proportional to 4,800.92, 7,201.38 and 1,338.08

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Solution

The fourth proportional to 4,800.92, 7,201.38 and 1,338.08 is: 2,007.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,800.92 : 7,201.38 = 1,338.08 : x
  2. Step 2: Convert to fraction form
    4,800.92/7,201.38 = 1,338.08/x
  3. Step 3: Cross multiply
    4,800.92x = 7,201.38 × 1,338.08
  4. Step 4: Simplify right side
    4,800.92x = 9,636,022.55
  5. Step 5: Solve for x
    x = 9,636,022.55/4,800.92
  6. Step 6: Final answer
    x = 2,007.12

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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.