Home / 5,196.60-7,788.66-3,000.78

Finding the Fourth Proportional to 5,196.60, 7,788.66 and 3,000.78

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Solution

The fourth proportional to 5,196.60, 7,788.66 and 3,000.78 is: 4,497.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,196.60 : 7,788.66 = 3,000.78 : x
  2. Step 2: Convert to fraction form
    5,196.60/7,788.66 = 3,000.78/x
  3. Step 3: Cross multiply
    5,196.60x = 7,788.66 × 3,000.78
  4. Step 4: Simplify right side
    5,196.60x = 23,372,055.15
  5. Step 5: Solve for x
    x = 23,372,055.15/5,196.60
  6. Step 6: Final answer
    x = 4,497.57

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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.