Home / 6,311.57-8,710.26-3,659.81

Finding the Fourth Proportional to 6,311.57, 8,710.26 and 3,659.81

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Solution

The fourth proportional to 6,311.57, 8,710.26 and 3,659.81 is: 5,050.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.57 : 8,710.26 = 3,659.81 : x
  2. Step 2: Convert to fraction form
    6,311.57/8,710.26 = 3,659.81/x
  3. Step 3: Cross multiply
    6,311.57x = 8,710.26 × 3,659.81
  4. Step 4: Simplify right side
    6,311.57x = 31,877,896.65
  5. Step 5: Solve for x
    x = 31,877,896.65/6,311.57
  6. Step 6: Final answer
    x = 5,050.71

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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.