Home / 6,310.57-8,708.48-3,478.21

Finding the Fourth Proportional to 6,310.57, 8,708.48 and 3,478.21

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Solution

The fourth proportional to 6,310.57, 8,708.48 and 3,478.21 is: 4,799.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,310.57 : 8,708.48 = 3,478.21 : x
  2. Step 2: Convert to fraction form
    6,310.57/8,708.48 = 3,478.21/x
  3. Step 3: Cross multiply
    6,310.57x = 8,708.48 × 3,478.21
  4. Step 4: Simplify right side
    6,310.57x = 30,289,922.22
  5. Step 5: Solve for x
    x = 30,289,922.22/6,310.57
  6. Step 6: Final answer
    x = 4,799.87

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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.