Home / 7,422.87-11,127.59-2,739.65

Finding the Fourth Proportional to 7,422.87, 11,127.59 and 2,739.65

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Solution

The fourth proportional to 7,422.87, 11,127.59 and 2,739.65 is: 4,106.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.87 : 11,127.59 = 2,739.65 : x
  2. Step 2: Convert to fraction form
    7,422.87/11,127.59 = 2,739.65/x
  3. Step 3: Cross multiply
    7,422.87x = 11,127.59 × 2,739.65
  4. Step 4: Simplify right side
    7,422.87x = 30,485,688.25
  5. Step 5: Solve for x
    x = 30,485,688.25/7,422.87
  6. Step 6: Final answer
    x = 4,106.99

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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.