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Finding the Fourth Proportional to 3,047.05, 4,204.95 and 1,928.47

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Solution

The fourth proportional to 3,047.05, 4,204.95 and 1,928.47 is: 2,661.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.05 : 4,204.95 = 1,928.47 : x
  2. Step 2: Convert to fraction form
    3,047.05/4,204.95 = 1,928.47/x
  3. Step 3: Cross multiply
    3,047.05x = 4,204.95 × 1,928.47
  4. Step 4: Simplify right side
    3,047.05x = 8,109,119.93
  5. Step 5: Solve for x
    x = 8,109,119.93/3,047.05
  6. Step 6: Final answer
    x = 2,661.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.