Home / 6,239.73-8,609.81-3,687.13

Finding the Fourth Proportional to 6,239.73, 8,609.81 and 3,687.13

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Solution

The fourth proportional to 6,239.73, 8,609.81 and 3,687.13 is: 5,087.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239.73 : 8,609.81 = 3,687.13 : x
  2. Step 2: Convert to fraction form
    6,239.73/8,609.81 = 3,687.13/x
  3. Step 3: Cross multiply
    6,239.73x = 8,609.81 × 3,687.13
  4. Step 4: Simplify right side
    6,239.73x = 31,745,470.31
  5. Step 5: Solve for x
    x = 31,745,470.31/6,239.73
  6. Step 6: Final answer
    x = 5,087.64

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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.