Home / 2,928.60-4,044.06-2,788.56

Finding the Fourth Proportional to 2,928.60, 4,044.06 and 2,788.56

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Solution

The fourth proportional to 2,928.60, 4,044.06 and 2,788.56 is: 3,850.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.60 : 4,044.06 = 2,788.56 : x
  2. Step 2: Convert to fraction form
    2,928.60/4,044.06 = 2,788.56/x
  3. Step 3: Cross multiply
    2,928.60x = 4,044.06 × 2,788.56
  4. Step 4: Simplify right side
    2,928.60x = 11,277,103.95
  5. Step 5: Solve for x
    x = 11,277,103.95/2,928.60
  6. Step 6: Final answer
    x = 3,850.68

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1.5x scale

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.