Home / 3,491.30-4,817.96-1,919.38

Finding the Fourth Proportional to 3,491.30, 4,817.96 and 1,919.38

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Solution

The fourth proportional to 3,491.30, 4,817.96 and 1,919.38 is: 2,648.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.30 : 4,817.96 = 1,919.38 : x
  2. Step 2: Convert to fraction form
    3,491.30/4,817.96 = 1,919.38/x
  3. Step 3: Cross multiply
    3,491.30x = 4,817.96 × 1,919.38
  4. Step 4: Simplify right side
    3,491.30x = 9,247,496.06
  5. Step 5: Solve for x
    x = 9,247,496.06/3,491.30
  6. Step 6: Final answer
    x = 2,648.73

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1.5x scale

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.