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Finding the Fourth Proportional to 6,311.08, 8,710.94 and 3,658.16

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Solution

The fourth proportional to 6,311.08, 8,710.94 and 3,658.16 is: 5,049.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,311.08 : 8,710.94 = 3,658.16 : x
  2. Step 2: Convert to fraction form
    6,311.08/8,710.94 = 3,658.16/x
  3. Step 3: Cross multiply
    6,311.08x = 8,710.94 × 3,658.16
  4. Step 4: Simplify right side
    6,311.08x = 31,866,012.27
  5. Step 5: Solve for x
    x = 31,866,012.27/6,311.08
  6. Step 6: Final answer
    x = 5,049.22

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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.