Home / 1,928.18-2,660.86-1,043.97

Finding the Fourth Proportional to 1,928.18, 2,660.86 and 1,043.97

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Solution

The fourth proportional to 1,928.18, 2,660.86 and 1,043.97 is: 1,440.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.18 : 2,660.86 = 1,043.97 : x
  2. Step 2: Convert to fraction form
    1,928.18/2,660.86 = 1,043.97/x
  3. Step 3: Cross multiply
    1,928.18x = 2,660.86 × 1,043.97
  4. Step 4: Simplify right side
    1,928.18x = 2,777,858.01
  5. Step 5: Solve for x
    x = 2,777,858.01/1,928.18
  6. Step 6: Final answer
    x = 1,440.66

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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.