Home / 7,742.39-11,609.93-2,808.57

Finding the Fourth Proportional to 7,742.39, 11,609.93 and 2,808.57

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Solution

The fourth proportional to 7,742.39, 11,609.93 and 2,808.57 is: 4,211.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.39 : 11,609.93 = 2,808.57 : x
  2. Step 2: Convert to fraction form
    7,742.39/11,609.93 = 2,808.57/x
  3. Step 3: Cross multiply
    7,742.39x = 11,609.93 × 2,808.57
  4. Step 4: Simplify right side
    7,742.39x = 32,607,351.66
  5. Step 5: Solve for x
    x = 32,607,351.66/7,742.39
  6. Step 6: Final answer
    x = 4,211.54

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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.