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Finding the Fourth Proportional to 3,920.19, 5,849.88 and 3,504.75

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Solution

The fourth proportional to 3,920.19, 5,849.88 and 3,504.75 is: 5,229.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920.19 : 5,849.88 = 3,504.75 : x
  2. Step 2: Convert to fraction form
    3,920.19/5,849.88 = 3,504.75/x
  3. Step 3: Cross multiply
    3,920.19x = 5,849.88 × 3,504.75
  4. Step 4: Simplify right side
    3,920.19x = 20,502,366.93
  5. Step 5: Solve for x
    x = 20,502,366.93/3,920.19
  6. Step 6: Final answer
    x = 5,229.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.