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Finding the Fourth Proportional to 6,310.22, 8,708.16 and 3,953.74

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Solution

The fourth proportional to 6,310.22, 8,708.16 and 3,953.74 is: 5,456.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,310.22 : 8,708.16 = 3,953.74 : x
  2. Step 2: Convert to fraction form
    6,310.22/8,708.16 = 3,953.74/x
  3. Step 3: Cross multiply
    6,310.22x = 8,708.16 × 3,953.74
  4. Step 4: Simplify right side
    6,310.22x = 34,429,800.52
  5. Step 5: Solve for x
    x = 34,429,800.52/6,310.22
  6. Step 6: Final answer
    x = 5,456.20

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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.