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Finding the Fourth Proportional to 3,770.92, 5,199.90 and 2,651.48

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Solution

The fourth proportional to 3,770.92, 5,199.90 and 2,651.48 is: 3,656.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,770.92 : 5,199.90 = 2,651.48 : x
  2. Step 2: Convert to fraction form
    3,770.92/5,199.90 = 2,651.48/x
  3. Step 3: Cross multiply
    3,770.92x = 5,199.90 × 2,651.48
  4. Step 4: Simplify right side
    3,770.92x = 13,787,430.85
  5. Step 5: Solve for x
    x = 13,787,430.85/3,770.92
  6. Step 6: Final answer
    x = 3,656.25

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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.