Home / 7,975.20-11,964.96-2,428.32

Finding the Fourth Proportional to 7,975.20, 11,964.96 and 2,428.32

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Solution

The fourth proportional to 7,975.20, 11,964.96 and 2,428.32 is: 3,643.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.20 : 11,964.96 = 2,428.32 : x
  2. Step 2: Convert to fraction form
    7,975.20/11,964.96 = 2,428.32/x
  3. Step 3: Cross multiply
    7,975.20x = 11,964.96 × 2,428.32
  4. Step 4: Simplify right side
    7,975.20x = 29,054,751.67
  5. Step 5: Solve for x
    x = 29,054,751.67/7,975.20
  6. Step 6: Final answer
    x = 3,643.14

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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.