Home / 3,487.26-5,230.44-1,378.87

Finding the Fourth Proportional to 3,487.26, 5,230.44 and 1,378.87

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Solution

The fourth proportional to 3,487.26, 5,230.44 and 1,378.87 is: 2,068.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.26 : 5,230.44 = 1,378.87 : x
  2. Step 2: Convert to fraction form
    3,487.26/5,230.44 = 1,378.87/x
  3. Step 3: Cross multiply
    3,487.26x = 5,230.44 × 1,378.87
  4. Step 4: Simplify right side
    3,487.26x = 7,212,083.73
  5. Step 5: Solve for x
    x = 7,212,083.73/3,487.26
  6. Step 6: Final answer
    x = 2,068.12

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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.