Home / 3,771.60-5,657.38-2,656.43

Finding the Fourth Proportional to 3,771.60, 5,657.38 and 2,656.43

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Solution

The fourth proportional to 3,771.60, 5,657.38 and 2,656.43 is: 3,984.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.60 : 5,657.38 = 2,656.43 : x
  2. Step 2: Convert to fraction form
    3,771.60/5,657.38 = 2,656.43/x
  3. Step 3: Cross multiply
    3,771.60x = 5,657.38 × 2,656.43
  4. Step 4: Simplify right side
    3,771.60x = 15,028,433.95
  5. Step 5: Solve for x
    x = 15,028,433.95/3,771.60
  6. Step 6: Final answer
    x = 3,984.63

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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.