Home / 2,249.36-3,105.10-1,365.45

Finding the Fourth Proportional to 2,249.36, 3,105.10 and 1,365.45

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Solution

The fourth proportional to 2,249.36, 3,105.10 and 1,365.45 is: 1,884.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,249.36 : 3,105.10 = 1,365.45 : x
  2. Step 2: Convert to fraction form
    2,249.36/3,105.10 = 1,365.45/x
  3. Step 3: Cross multiply
    2,249.36x = 3,105.10 × 1,365.45
  4. Step 4: Simplify right side
    2,249.36x = 4,239,858.80
  5. Step 5: Solve for x
    x = 4,239,858.80/2,249.36
  6. Step 6: Final answer
    x = 1,884.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.