Home / 7,664.22-11,500.76-3,221.53

Finding the Fourth Proportional to 7,664.22, 11,500.76 and 3,221.53

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Solution

The fourth proportional to 7,664.22, 11,500.76 and 3,221.53 is: 4,834.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.22 : 11,500.76 = 3,221.53 : x
  2. Step 2: Convert to fraction form
    7,664.22/11,500.76 = 3,221.53/x
  3. Step 3: Cross multiply
    7,664.22x = 11,500.76 × 3,221.53
  4. Step 4: Simplify right side
    7,664.22x = 37,050,045.95
  5. Step 5: Solve for x
    x = 37,050,045.95/7,664.22
  6. Step 6: Final answer
    x = 4,834.16

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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.