Home / 5,144.87-7,715.70-1,857.54

Finding the Fourth Proportional to 5,144.87, 7,715.70 and 1,857.54

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Solution

The fourth proportional to 5,144.87, 7,715.70 and 1,857.54 is: 2,785.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.87 : 7,715.70 = 1,857.54 : x
  2. Step 2: Convert to fraction form
    5,144.87/7,715.70 = 1,857.54/x
  3. Step 3: Cross multiply
    5,144.87x = 7,715.70 × 1,857.54
  4. Step 4: Simplify right side
    5,144.87x = 14,332,221.38
  5. Step 5: Solve for x
    x = 14,332,221.38/5,144.87
  6. Step 6: Final answer
    x = 2,785.73

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1.5x scale

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.