Home / 3,844.75-5,768.09-1,108.75

Finding the Fourth Proportional to 3,844.75, 5,768.09 and 1,108.75

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Solution

The fourth proportional to 3,844.75, 5,768.09 and 1,108.75 is: 1,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,844.75 : 5,768.09 = 1,108.75 : x
  2. Step 2: Convert to fraction form
    3,844.75/5,768.09 = 1,108.75/x
  3. Step 3: Cross multiply
    3,844.75x = 5,768.09 × 1,108.75
  4. Step 4: Simplify right side
    3,844.75x = 6,395,369.79
  5. Step 5: Solve for x
    x = 6,395,369.79/3,844.75
  6. Step 6: Final answer
    x = 1,663.40

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1.5x scale

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.