Home / 1,919.22-2,649-1,133.52

Finding the Fourth Proportional to 1,919.22, 2,649 and 1,133.52

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Solution

The fourth proportional to 1,919.22, 2,649 and 1,133.52 is: 1,564.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.22 : 2,649 = 1,133.52 : x
  2. Step 2: Convert to fraction form
    1,919.22/2,649 = 1,133.52/x
  3. Step 3: Cross multiply
    1,919.22x = 2,649 × 1,133.52
  4. Step 4: Simplify right side
    1,919.22x = 3,002,694.48
  5. Step 5: Solve for x
    x = 3,002,694.48/1,919.22
  6. Step 6: Final answer
    x = 1,564.54

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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.