Home / 2,919.70-4,380.27-1,071.82

Finding the Fourth Proportional to 2,919.70, 4,380.27 and 1,071.82

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Solution

The fourth proportional to 2,919.70, 4,380.27 and 1,071.82 is: 1,607.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.70 : 4,380.27 = 1,071.82 : x
  2. Step 2: Convert to fraction form
    2,919.70/4,380.27 = 1,071.82/x
  3. Step 3: Cross multiply
    2,919.70x = 4,380.27 × 1,071.82
  4. Step 4: Simplify right side
    2,919.70x = 4,694,860.99
  5. Step 5: Solve for x
    x = 4,694,860.99/2,919.70
  6. Step 6: Final answer
    x = 1,607.99

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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.