Home / 7,965.12-11,949.36-2,419.08

Finding the Fourth Proportional to 7,965.12, 11,949.36 and 2,419.08

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Solution

The fourth proportional to 7,965.12, 11,949.36 and 2,419.08 is: 3,629.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.12 : 11,949.36 = 2,419.08 : x
  2. Step 2: Convert to fraction form
    7,965.12/11,949.36 = 2,419.08/x
  3. Step 3: Cross multiply
    7,965.12x = 11,949.36 × 2,419.08
  4. Step 4: Simplify right side
    7,965.12x = 28,906,457.79
  5. Step 5: Solve for x
    x = 28,906,457.79/7,965.12
  6. Step 6: Final answer
    x = 3,629.13

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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.