Home / 2,551.57-3,819.40-1,965.05

Finding the Fourth Proportional to 2,551.57, 3,819.40 and 1,965.05

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Solution

The fourth proportional to 2,551.57, 3,819.40 and 1,965.05 is: 2,941.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.57 : 3,819.40 = 1,965.05 : x
  2. Step 2: Convert to fraction form
    2,551.57/3,819.40 = 1,965.05/x
  3. Step 3: Cross multiply
    2,551.57x = 3,819.40 × 1,965.05
  4. Step 4: Simplify right side
    2,551.57x = 7,505,283.05
  5. Step 5: Solve for x
    x = 7,505,283.05/2,551.57
  6. Step 6: Final answer
    x = 2,941.44

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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.