Home / 7,221.69-10,826.33-2,838.11

Finding the Fourth Proportional to 7,221.69, 10,826.33 and 2,838.11

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Solution

The fourth proportional to 7,221.69, 10,826.33 and 2,838.11 is: 4,254.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.69 : 10,826.33 = 2,838.11 : x
  2. Step 2: Convert to fraction form
    7,221.69/10,826.33 = 2,838.11/x
  3. Step 3: Cross multiply
    7,221.69x = 10,826.33 × 2,838.11
  4. Step 4: Simplify right side
    7,221.69x = 30,726,247.11
  5. Step 5: Solve for x
    x = 30,726,247.11/7,221.69
  6. Step 6: Final answer
    x = 4,254.72

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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.