Home / 2,919.43-4,378.83-1,165.17

Finding the Fourth Proportional to 2,919.43, 4,378.83 and 1,165.17

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Solution

The fourth proportional to 2,919.43, 4,378.83 and 1,165.17 is: 1,747.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.43 : 4,378.83 = 1,165.17 : x
  2. Step 2: Convert to fraction form
    2,919.43/4,378.83 = 1,165.17/x
  3. Step 3: Cross multiply
    2,919.43x = 4,378.83 × 1,165.17
  4. Step 4: Simplify right side
    2,919.43x = 5,102,081.35
  5. Step 5: Solve for x
    x = 5,102,081.35/2,919.43
  6. Step 6: Final answer
    x = 1,747.63

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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.