Home / 2,919.44-4,380.12-1,380.08

Finding the Fourth Proportional to 2,919.44, 4,380.12 and 1,380.08

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Solution

The fourth proportional to 2,919.44, 4,380.12 and 1,380.08 is: 2,070.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.44 : 4,380.12 = 1,380.08 : x
  2. Step 2: Convert to fraction form
    2,919.44/4,380.12 = 1,380.08/x
  3. Step 3: Cross multiply
    2,919.44x = 4,380.12 × 1,380.08
  4. Step 4: Simplify right side
    2,919.44x = 6,044,916.01
  5. Step 5: Solve for x
    x = 6,044,916.01/2,919.44
  6. Step 6: Final answer
    x = 2,070.57

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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.