Home / 5,919.70-8,171.52-3,561.38

Finding the Fourth Proportional to 5,919.70, 8,171.52 and 3,561.38

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Solution

The fourth proportional to 5,919.70, 8,171.52 and 3,561.38 is: 4,916.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.70 : 8,171.52 = 3,561.38 : x
  2. Step 2: Convert to fraction form
    5,919.70/8,171.52 = 3,561.38/x
  3. Step 3: Cross multiply
    5,919.70x = 8,171.52 × 3,561.38
  4. Step 4: Simplify right side
    5,919.70x = 29,101,887.90
  5. Step 5: Solve for x
    x = 29,101,887.90/5,919.70
  6. Step 6: Final answer
    x = 4,916.11

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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.