Home / 3,487.29-5,230.92-2,189.67

Finding the Fourth Proportional to 3,487.29, 5,230.92 and 2,189.67

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Solution

The fourth proportional to 3,487.29, 5,230.92 and 2,189.67 is: 3,284.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.29 : 5,230.92 = 2,189.67 : x
  2. Step 2: Convert to fraction form
    3,487.29/5,230.92 = 2,189.67/x
  3. Step 3: Cross multiply
    3,487.29x = 5,230.92 × 2,189.67
  4. Step 4: Simplify right side
    3,487.29x = 11,453,962.44
  5. Step 5: Solve for x
    x = 11,453,962.44/3,487.29
  6. Step 6: Final answer
    x = 3,284.49

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1.5x scale

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.