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Finding the Fourth Proportional to 3,947.03, 5,920.09 and 3,293.07

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Solution

The fourth proportional to 3,947.03, 5,920.09 and 3,293.07 is: 4,939.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.03 : 5,920.09 = 3,293.07 : x
  2. Step 2: Convert to fraction form
    3,947.03/5,920.09 = 3,293.07/x
  3. Step 3: Cross multiply
    3,947.03x = 5,920.09 × 3,293.07
  4. Step 4: Simplify right side
    3,947.03x = 19,495,270.78
  5. Step 5: Solve for x
    x = 19,495,270.78/3,947.03
  6. Step 6: Final answer
    x = 4,939.23

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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.