Home / 6,761.48-10,135.04-3,989.46

Finding the Fourth Proportional to 6,761.48, 10,135.04 and 3,989.46

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Solution

The fourth proportional to 6,761.48, 10,135.04 and 3,989.46 is: 5,979.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,761.48 : 10,135.04 = 3,989.46 : x
  2. Step 2: Convert to fraction form
    6,761.48/10,135.04 = 3,989.46/x
  3. Step 3: Cross multiply
    6,761.48x = 10,135.04 × 3,989.46
  4. Step 4: Simplify right side
    6,761.48x = 40,433,336.68
  5. Step 5: Solve for x
    x = 40,433,336.68/6,761.48
  6. Step 6: Final answer
    x = 5,979.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.