Home / 5,125.87-7,682.63-2,163.16

Finding the Fourth Proportional to 5,125.87, 7,682.63 and 2,163.16

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Solution

The fourth proportional to 5,125.87, 7,682.63 and 2,163.16 is: 3,242.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.87 : 7,682.63 = 2,163.16 : x
  2. Step 2: Convert to fraction form
    5,125.87/7,682.63 = 2,163.16/x
  3. Step 3: Cross multiply
    5,125.87x = 7,682.63 × 2,163.16
  4. Step 4: Simplify right side
    5,125.87x = 16,618,756.70
  5. Step 5: Solve for x
    x = 16,618,756.70/5,125.87
  6. Step 6: Final answer
    x = 3,242.13

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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.