Home / 2,259.99-3,380.63-2,121.75

Finding the Fourth Proportional to 2,259.99, 3,380.63 and 2,121.75

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Solution

The fourth proportional to 2,259.99, 3,380.63 and 2,121.75 is: 3,173.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.99 : 3,380.63 = 2,121.75 : x
  2. Step 2: Convert to fraction form
    2,259.99/3,380.63 = 2,121.75/x
  3. Step 3: Cross multiply
    2,259.99x = 3,380.63 × 2,121.75
  4. Step 4: Simplify right side
    2,259.99x = 7,172,841.09
  5. Step 5: Solve for x
    x = 7,172,841.09/2,259.99
  6. Step 6: Final answer
    x = 3,173.84

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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.