Home / 3,856.38-5,782.23-1,258.98

Finding the Fourth Proportional to 3,856.38, 5,782.23 and 1,258.98

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Solution

The fourth proportional to 3,856.38, 5,782.23 and 1,258.98 is: 1,887.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.38 : 5,782.23 = 1,258.98 : x
  2. Step 2: Convert to fraction form
    3,856.38/5,782.23 = 1,258.98/x
  3. Step 3: Cross multiply
    3,856.38x = 5,782.23 × 1,258.98
  4. Step 4: Simplify right side
    3,856.38x = 7,279,711.93
  5. Step 5: Solve for x
    x = 7,279,711.93/3,856.38
  6. Step 6: Final answer
    x = 1,887.71

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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.