Home / 2,759.33-4,139.84-1,928.35

Finding the Fourth Proportional to 2,759.33, 4,139.84 and 1,928.35

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Solution

The fourth proportional to 2,759.33, 4,139.84 and 1,928.35 is: 2,893.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.33 : 4,139.84 = 1,928.35 : x
  2. Step 2: Convert to fraction form
    2,759.33/4,139.84 = 1,928.35/x
  3. Step 3: Cross multiply
    2,759.33x = 4,139.84 × 1,928.35
  4. Step 4: Simplify right side
    2,759.33x = 7,983,040.47
  5. Step 5: Solve for x
    x = 7,983,040.47/2,759.33
  6. Step 6: Final answer
    x = 2,893.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.