Home / 9,211.79-13,819.05-2,969.75

Finding the Fourth Proportional to 9,211.79, 13,819.05 and 2,969.75

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Solution

The fourth proportional to 9,211.79, 13,819.05 and 2,969.75 is: 4,455.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.79 : 13,819.05 = 2,969.75 : x
  2. Step 2: Convert to fraction form
    9,211.79/13,819.05 = 2,969.75/x
  3. Step 3: Cross multiply
    9,211.79x = 13,819.05 × 2,969.75
  4. Step 4: Simplify right side
    9,211.79x = 41,039,054.64
  5. Step 5: Solve for x
    x = 41,039,054.64/9,211.79
  6. Step 6: Final answer
    x = 4,455.06

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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.