Home / 7,486.83-11,228.32-2,220.61

Finding the Fourth Proportional to 7,486.83, 11,228.32 and 2,220.61

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Solution

The fourth proportional to 7,486.83, 11,228.32 and 2,220.61 is: 3,330.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.83 : 11,228.32 = 2,220.61 : x
  2. Step 2: Convert to fraction form
    7,486.83/11,228.32 = 2,220.61/x
  3. Step 3: Cross multiply
    7,486.83x = 11,228.32 × 2,220.61
  4. Step 4: Simplify right side
    7,486.83x = 24,933,719.68
  5. Step 5: Solve for x
    x = 24,933,719.68/7,486.83
  6. Step 6: Final answer
    x = 3,330.34

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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.