Home / 5,538.38-8,309.18-1,790.09

Finding the Fourth Proportional to 5,538.38, 8,309.18 and 1,790.09

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Solution

The fourth proportional to 5,538.38, 8,309.18 and 1,790.09 is: 2,685.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.38 : 8,309.18 = 1,790.09 : x
  2. Step 2: Convert to fraction form
    5,538.38/8,309.18 = 1,790.09/x
  3. Step 3: Cross multiply
    5,538.38x = 8,309.18 × 1,790.09
  4. Step 4: Simplify right side
    5,538.38x = 14,874,138.48
  5. Step 5: Solve for x
    x = 14,874,138.48/5,538.38
  6. Step 6: Final answer
    x = 2,685.65

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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.