Home / 7,688.75-11,539.22-3,530.67

Finding the Fourth Proportional to 7,688.75, 11,539.22 and 3,530.67

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Solution

The fourth proportional to 7,688.75, 11,539.22 and 3,530.67 is: 5,298.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,688.75 : 11,539.22 = 3,530.67 : x
  2. Step 2: Convert to fraction form
    7,688.75/11,539.22 = 3,530.67/x
  3. Step 3: Cross multiply
    7,688.75x = 11,539.22 × 3,530.67
  4. Step 4: Simplify right side
    7,688.75x = 40,741,160.22
  5. Step 5: Solve for x
    x = 40,741,160.22/7,688.75
  6. Step 6: Final answer
    x = 5,298.80

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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.