Home / 4,155.80-6,231.38-1,381.73

Finding the Fourth Proportional to 4,155.80, 6,231.38 and 1,381.73

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Solution

The fourth proportional to 4,155.80, 6,231.38 and 1,381.73 is: 2,071.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.80 : 6,231.38 = 1,381.73 : x
  2. Step 2: Convert to fraction form
    4,155.80/6,231.38 = 1,381.73/x
  3. Step 3: Cross multiply
    4,155.80x = 6,231.38 × 1,381.73
  4. Step 4: Simplify right side
    4,155.80x = 8,610,093.36
  5. Step 5: Solve for x
    x = 8,610,093.36/4,155.80
  6. Step 6: Final answer
    x = 2,071.82

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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.