Home / 2,615.44-3,923.80-1,228.48

Finding the Fourth Proportional to 2,615.44, 3,923.80 and 1,228.48

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Solution

The fourth proportional to 2,615.44, 3,923.80 and 1,228.48 is: 1,843.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.44 : 3,923.80 = 1,228.48 : x
  2. Step 2: Convert to fraction form
    2,615.44/3,923.80 = 1,228.48/x
  3. Step 3: Cross multiply
    2,615.44x = 3,923.80 × 1,228.48
  4. Step 4: Simplify right side
    2,615.44x = 4,820,309.82
  5. Step 5: Solve for x
    x = 4,820,309.82/2,615.44
  6. Step 6: Final answer
    x = 1,843.02

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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.