Home / 5,809.72-8,013.18-3,685.92

Finding the Fourth Proportional to 5,809.72, 8,013.18 and 3,685.92

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Solution

The fourth proportional to 5,809.72, 8,013.18 and 3,685.92 is: 5,083.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,809.72 : 8,013.18 = 3,685.92 : x
  2. Step 2: Convert to fraction form
    5,809.72/8,013.18 = 3,685.92/x
  3. Step 3: Cross multiply
    5,809.72x = 8,013.18 × 3,685.92
  4. Step 4: Simplify right side
    5,809.72x = 29,535,940.43
  5. Step 5: Solve for x
    x = 29,535,940.43/5,809.72
  6. Step 6: Final answer
    x = 5,083.88

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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.