Home / 4,091.38-6,137.21-1,318.02

Finding the Fourth Proportional to 4,091.38, 6,137.21 and 1,318.02

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Solution

The fourth proportional to 4,091.38, 6,137.21 and 1,318.02 is: 1,977.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.38 : 6,137.21 = 1,318.02 : x
  2. Step 2: Convert to fraction form
    4,091.38/6,137.21 = 1,318.02/x
  3. Step 3: Cross multiply
    4,091.38x = 6,137.21 × 1,318.02
  4. Step 4: Simplify right side
    4,091.38x = 8,088,965.52
  5. Step 5: Solve for x
    x = 8,088,965.52/4,091.38
  6. Step 6: Final answer
    x = 1,977.08

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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.