Home / 3,114.63-4,299.33-1,919.81

Finding the Fourth Proportional to 3,114.63, 4,299.33 and 1,919.81

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Solution

The fourth proportional to 3,114.63, 4,299.33 and 1,919.81 is: 2,650.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.63 : 4,299.33 = 1,919.81 : x
  2. Step 2: Convert to fraction form
    3,114.63/4,299.33 = 1,919.81/x
  3. Step 3: Cross multiply
    3,114.63x = 4,299.33 × 1,919.81
  4. Step 4: Simplify right side
    3,114.63x = 8,253,898.55
  5. Step 5: Solve for x
    x = 8,253,898.55/3,114.63
  6. Step 6: Final answer
    x = 2,650.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.