Home / 7,284.57-10,926.86-3,121.88

Finding the Fourth Proportional to 7,284.57, 10,926.86 and 3,121.88

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Solution

The fourth proportional to 7,284.57, 10,926.86 and 3,121.88 is: 4,682.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,284.57 : 10,926.86 = 3,121.88 : x
  2. Step 2: Convert to fraction form
    7,284.57/10,926.86 = 3,121.88/x
  3. Step 3: Cross multiply
    7,284.57x = 10,926.86 × 3,121.88
  4. Step 4: Simplify right side
    7,284.57x = 34,112,345.70
  5. Step 5: Solve for x
    x = 34,112,345.70/7,284.57
  6. Step 6: Final answer
    x = 4,682.82

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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.