Home / 7,954.96-11,928.78-2,408.90

Finding the Fourth Proportional to 7,954.96, 11,928.78 and 2,408.90

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Solution

The fourth proportional to 7,954.96, 11,928.78 and 2,408.90 is: 3,612.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.96 : 11,928.78 = 2,408.90 : x
  2. Step 2: Convert to fraction form
    7,954.96/11,928.78 = 2,408.90/x
  3. Step 3: Cross multiply
    7,954.96x = 11,928.78 × 2,408.90
  4. Step 4: Simplify right side
    7,954.96x = 28,735,238.14
  5. Step 5: Solve for x
    x = 28,735,238.14/7,954.96
  6. Step 6: Final answer
    x = 3,612.24

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1.5x scale

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.