Home / 2,419.68-3,620.88-2,256.96

Finding the Fourth Proportional to 2,419.68, 3,620.88 and 2,256.96

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Solution

The fourth proportional to 2,419.68, 3,620.88 and 2,256.96 is: 3,377.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.68 : 3,620.88 = 2,256.96 : x
  2. Step 2: Convert to fraction form
    2,419.68/3,620.88 = 2,256.96/x
  3. Step 3: Cross multiply
    2,419.68x = 3,620.88 × 2,256.96
  4. Step 4: Simplify right side
    2,419.68x = 8,172,181.32
  5. Step 5: Solve for x
    x = 8,172,181.32/2,419.68
  6. Step 6: Final answer
    x = 3,377.38

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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.