Home / 1,944.40-2,683.20-1,105.09

Finding the Fourth Proportional to 1,944.40, 2,683.20 and 1,105.09

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Solution

The fourth proportional to 1,944.40, 2,683.20 and 1,105.09 is: 1,524.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.40 : 2,683.20 = 1,105.09 : x
  2. Step 2: Convert to fraction form
    1,944.40/2,683.20 = 1,105.09/x
  3. Step 3: Cross multiply
    1,944.40x = 2,683.20 × 1,105.09
  4. Step 4: Simplify right side
    1,944.40x = 2,965,164.07
  5. Step 5: Solve for x
    x = 2,965,164.07/1,944.40
  6. Step 6: Final answer
    x = 1,524.98

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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.