Home / 1,914.33-2,641.91-1,128.84

Finding the Fourth Proportional to 1,914.33, 2,641.91 and 1,128.84

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Solution

The fourth proportional to 1,914.33, 2,641.91 and 1,128.84 is: 1,557.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.33 : 2,641.91 = 1,128.84 : x
  2. Step 2: Convert to fraction form
    1,914.33/2,641.91 = 1,128.84/x
  3. Step 3: Cross multiply
    1,914.33x = 2,641.91 × 1,128.84
  4. Step 4: Simplify right side
    1,914.33x = 2,982,293.68
  5. Step 5: Solve for x
    x = 2,982,293.68/1,914.33
  6. Step 6: Final answer
    x = 1,557.88

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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.