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Finding the Fourth Proportional to 6,139.84, 9,201.84 and 2,239.60

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Solution

The fourth proportional to 6,139.84, 9,201.84 and 2,239.60 is: 3,356.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.84 : 9,201.84 = 2,239.60 : x
  2. Step 2: Convert to fraction form
    6,139.84/9,201.84 = 2,239.60/x
  3. Step 3: Cross multiply
    6,139.84x = 9,201.84 × 2,239.60
  4. Step 4: Simplify right side
    6,139.84x = 20,608,440.86
  5. Step 5: Solve for x
    x = 20,608,440.86/6,139.84
  6. Step 6: Final answer
    x = 3,356.51

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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.