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Finding the Fourth Proportional to 6,310.71, 8,708.95 and 3,478.39

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Solution

The fourth proportional to 6,310.71, 8,708.95 and 3,478.39 is: 4,800.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,310.71 : 8,708.95 = 3,478.39 : x
  2. Step 2: Convert to fraction form
    6,310.71/8,708.95 = 3,478.39/x
  3. Step 3: Cross multiply
    6,310.71x = 8,708.95 × 3,478.39
  4. Step 4: Simplify right side
    6,310.71x = 30,293,107.20
  5. Step 5: Solve for x
    x = 30,293,107.20/6,310.71
  6. Step 6: Final answer
    x = 4,800.27

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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.