Home / 7,964.94-10,991.19-4,428.08

Finding the Fourth Proportional to 7,964.94, 10,991.19 and 4,428.08

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Solution

The fourth proportional to 7,964.94, 10,991.19 and 4,428.08 is: 6,110.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.94 : 10,991.19 = 4,428.08 : x
  2. Step 2: Convert to fraction form
    7,964.94/10,991.19 = 4,428.08/x
  3. Step 3: Cross multiply
    7,964.94x = 10,991.19 × 4,428.08
  4. Step 4: Simplify right side
    7,964.94x = 48,669,868.62
  5. Step 5: Solve for x
    x = 48,669,868.62/7,964.94
  6. Step 6: Final answer
    x = 6,110.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.