Home / 2,919.78-4,380.01-1,823.24

Finding the Fourth Proportional to 2,919.78, 4,380.01 and 1,823.24

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Solution

The fourth proportional to 2,919.78, 4,380.01 and 1,823.24 is: 2,735.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.78 : 4,380.01 = 1,823.24 : x
  2. Step 2: Convert to fraction form
    2,919.78/4,380.01 = 1,823.24/x
  3. Step 3: Cross multiply
    2,919.78x = 4,380.01 × 1,823.24
  4. Step 4: Simplify right side
    2,919.78x = 7,985,815.82
  5. Step 5: Solve for x
    x = 7,985,815.82/2,919.78
  6. Step 6: Final answer
    x = 2,735.07

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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.