Home / 6,621.87-9,137.61-3,637.71

Finding the Fourth Proportional to 6,621.87, 9,137.61 and 3,637.71

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Solution

The fourth proportional to 6,621.87, 9,137.61 and 3,637.71 is: 5,019.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.87 : 9,137.61 = 3,637.71 : x
  2. Step 2: Convert to fraction form
    6,621.87/9,137.61 = 3,637.71/x
  3. Step 3: Cross multiply
    6,621.87x = 9,137.61 × 3,637.71
  4. Step 4: Simplify right side
    6,621.87x = 33,239,975.27
  5. Step 5: Solve for x
    x = 33,239,975.27/6,621.87
  6. Step 6: Final answer
    x = 5,019.73

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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.