Home / 6,618.36-9,930.12-2,917.92

Finding the Fourth Proportional to 6,618.36, 9,930.12 and 2,917.92

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Solution

The fourth proportional to 6,618.36, 9,930.12 and 2,917.92 is: 4,378.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.36 : 9,930.12 = 2,917.92 : x
  2. Step 2: Convert to fraction form
    6,618.36/9,930.12 = 2,917.92/x
  3. Step 3: Cross multiply
    6,618.36x = 9,930.12 × 2,917.92
  4. Step 4: Simplify right side
    6,618.36x = 28,975,295.75
  5. Step 5: Solve for x
    x = 28,975,295.75/6,618.36
  6. Step 6: Final answer
    x = 4,378.02

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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.