Home / 1,919.92-2,649.57-1,133.97

Finding the Fourth Proportional to 1,919.92, 2,649.57 and 1,133.97

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Solution

The fourth proportional to 1,919.92, 2,649.57 and 1,133.97 is: 1,564.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.92 : 2,649.57 = 1,133.97 : x
  2. Step 2: Convert to fraction form
    1,919.92/2,649.57 = 1,133.97/x
  3. Step 3: Cross multiply
    1,919.92x = 2,649.57 × 1,133.97
  4. Step 4: Simplify right side
    1,919.92x = 3,004,532.89
  5. Step 5: Solve for x
    x = 3,004,532.89/1,919.92
  6. Step 6: Final answer
    x = 1,564.93

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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.