Home / 3,749.80-5,619.84-2,515.36

Finding the Fourth Proportional to 3,749.80, 5,619.84 and 2,515.36

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Solution

The fourth proportional to 3,749.80, 5,619.84 and 2,515.36 is: 3,769.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.80 : 5,619.84 = 2,515.36 : x
  2. Step 2: Convert to fraction form
    3,749.80/5,619.84 = 2,515.36/x
  3. Step 3: Cross multiply
    3,749.80x = 5,619.84 × 2,515.36
  4. Step 4: Simplify right side
    3,749.80x = 14,135,920.74
  5. Step 5: Solve for x
    x = 14,135,920.74/3,749.80
  6. Step 6: Final answer
    x = 3,769.78

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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.