Home / 5,151.57-7,109.37-3,027.12

Finding the Fourth Proportional to 5,151.57, 7,109.37 and 3,027.12

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Solution

The fourth proportional to 5,151.57, 7,109.37 and 3,027.12 is: 4,177.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.57 : 7,109.37 = 3,027.12 : x
  2. Step 2: Convert to fraction form
    5,151.57/7,109.37 = 3,027.12/x
  3. Step 3: Cross multiply
    5,151.57x = 7,109.37 × 3,027.12
  4. Step 4: Simplify right side
    5,151.57x = 21,520,916.11
  5. Step 5: Solve for x
    x = 21,520,916.11/5,151.57
  6. Step 6: Final answer
    x = 4,177.55

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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.