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Finding the Fourth Proportional to 3,793.61, 5,235.89 and 2,515.22

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Solution

The fourth proportional to 3,793.61, 5,235.89 and 2,515.22 is: 3,471.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,793.61 : 5,235.89 = 2,515.22 : x
  2. Step 2: Convert to fraction form
    3,793.61/5,235.89 = 2,515.22/x
  3. Step 3: Cross multiply
    3,793.61x = 5,235.89 × 2,515.22
  4. Step 4: Simplify right side
    3,793.61x = 13,169,376.49
  5. Step 5: Solve for x
    x = 13,169,376.49/3,793.61
  6. Step 6: Final answer
    x = 3,471.47

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1.5x scale

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.