Home / 7,835.60-11,742.72-3,942.68

Finding the Fourth Proportional to 7,835.60, 11,742.72 and 3,942.68

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Solution

The fourth proportional to 7,835.60, 11,742.72 and 3,942.68 is: 5,908.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835.60 : 11,742.72 = 3,942.68 : x
  2. Step 2: Convert to fraction form
    7,835.60/11,742.72 = 3,942.68/x
  3. Step 3: Cross multiply
    7,835.60x = 11,742.72 × 3,942.68
  4. Step 4: Simplify right side
    7,835.60x = 46,297,787.29
  5. Step 5: Solve for x
    x = 46,297,787.29/7,835.60
  6. Step 6: Final answer
    x = 5,908.65

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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.