Home / 5,548.60-7,656.99-3,190.78

Finding the Fourth Proportional to 5,548.60, 7,656.99 and 3,190.78

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Solution

The fourth proportional to 5,548.60, 7,656.99 and 3,190.78 is: 4,403.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,548.60 : 7,656.99 = 3,190.78 : x
  2. Step 2: Convert to fraction form
    5,548.60/7,656.99 = 3,190.78/x
  3. Step 3: Cross multiply
    5,548.60x = 7,656.99 × 3,190.78
  4. Step 4: Simplify right side
    5,548.60x = 24,431,770.55
  5. Step 5: Solve for x
    x = 24,431,770.55/5,548.60
  6. Step 6: Final answer
    x = 4,403.23

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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.