Home / 3,756.96-5,635.75-1,291.79

Finding the Fourth Proportional to 3,756.96, 5,635.75 and 1,291.79

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Solution

The fourth proportional to 3,756.96, 5,635.75 and 1,291.79 is: 1,937.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.96 : 5,635.75 = 1,291.79 : x
  2. Step 2: Convert to fraction form
    3,756.96/5,635.75 = 1,291.79/x
  3. Step 3: Cross multiply
    3,756.96x = 5,635.75 × 1,291.79
  4. Step 4: Simplify right side
    3,756.96x = 7,280,170.85
  5. Step 5: Solve for x
    x = 7,280,170.85/3,756.96
  6. Step 6: Final answer
    x = 1,937.78

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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.