Home / 7,975.42-11,964.86-2,428.62

Finding the Fourth Proportional to 7,975.42, 11,964.86 and 2,428.62

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Solution

The fourth proportional to 7,975.42, 11,964.86 and 2,428.62 is: 3,643.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.42 : 11,964.86 = 2,428.62 : x
  2. Step 2: Convert to fraction form
    7,975.42/11,964.86 = 2,428.62/x
  3. Step 3: Cross multiply
    7,975.42x = 11,964.86 × 2,428.62
  4. Step 4: Simplify right side
    7,975.42x = 29,058,131.35
  5. Step 5: Solve for x
    x = 29,058,131.35/7,975.42
  6. Step 6: Final answer
    x = 3,643.46

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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.