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Finding the Fourth Proportional to 6,310.96, 8,708.60 and 3,658.72

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Solution

The fourth proportional to 6,310.96, 8,708.60 and 3,658.72 is: 5,048.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,310.96 : 8,708.60 = 3,658.72 : x
  2. Step 2: Convert to fraction form
    6,310.96/8,708.60 = 3,658.72/x
  3. Step 3: Cross multiply
    6,310.96x = 8,708.60 × 3,658.72
  4. Step 4: Simplify right side
    6,310.96x = 31,862,328.99
  5. Step 5: Solve for x
    x = 31,862,328.99/6,310.96
  6. Step 6: Final answer
    x = 5,048.73

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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.