Home / 7,975.28-11,962.76-3,589.64

Finding the Fourth Proportional to 7,975.28, 11,962.76 and 3,589.64

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Solution

The fourth proportional to 7,975.28, 11,962.76 and 3,589.64 is: 5,384.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.28 : 11,962.76 = 3,589.64 : x
  2. Step 2: Convert to fraction form
    7,975.28/11,962.76 = 3,589.64/x
  3. Step 3: Cross multiply
    7,975.28x = 11,962.76 × 3,589.64
  4. Step 4: Simplify right side
    7,975.28x = 42,942,001.81
  5. Step 5: Solve for x
    x = 42,942,001.81/7,975.28
  6. Step 6: Final answer
    x = 5,384.39

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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.