Home / 7,286.40-10,926-3,388.32

Finding the Fourth Proportional to 7,286.40, 10,926 and 3,388.32

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Solution

The fourth proportional to 7,286.40, 10,926 and 3,388.32 is: 5,080.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286.40 : 10,926 = 3,388.32 : x
  2. Step 2: Convert to fraction form
    7,286.40/10,926 = 3,388.32/x
  3. Step 3: Cross multiply
    7,286.40x = 10,926 × 3,388.32
  4. Step 4: Simplify right side
    7,286.40x = 37,020,784.32
  5. Step 5: Solve for x
    x = 37,020,784.32/7,286.40
  6. Step 6: Final answer
    x = 5,080.81

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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.