Home / 5,277.20-7,911.89-3,196.81

Finding the Fourth Proportional to 5,277.20, 7,911.89 and 3,196.81

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Solution

The fourth proportional to 5,277.20, 7,911.89 and 3,196.81 is: 4,792.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,277.20 : 7,911.89 = 3,196.81 : x
  2. Step 2: Convert to fraction form
    5,277.20/7,911.89 = 3,196.81/x
  3. Step 3: Cross multiply
    5,277.20x = 7,911.89 × 3,196.81
  4. Step 4: Simplify right side
    5,277.20x = 25,292,753.53
  5. Step 5: Solve for x
    x = 25,292,753.53/5,277.20
  6. Step 6: Final answer
    x = 4,792.84

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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.