Home / 3,785.76-5,229.36-3,158.37

Finding the Fourth Proportional to 3,785.76, 5,229.36 and 3,158.37

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Solution

The fourth proportional to 3,785.76, 5,229.36 and 3,158.37 is: 4,362.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.76 : 5,229.36 = 3,158.37 : x
  2. Step 2: Convert to fraction form
    3,785.76/5,229.36 = 3,158.37/x
  3. Step 3: Cross multiply
    3,785.76x = 5,229.36 × 3,158.37
  4. Step 4: Simplify right side
    3,785.76x = 16,516,253.74
  5. Step 5: Solve for x
    x = 16,516,253.74/3,785.76
  6. Step 6: Final answer
    x = 4,362.73

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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.