Home / 7,318.92-10,100.14-3,961.74

Finding the Fourth Proportional to 7,318.92, 10,100.14 and 3,961.74

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Solution

The fourth proportional to 7,318.92, 10,100.14 and 3,961.74 is: 5,467.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.92 : 10,100.14 = 3,961.74 : x
  2. Step 2: Convert to fraction form
    7,318.92/10,100.14 = 3,961.74/x
  3. Step 3: Cross multiply
    7,318.92x = 10,100.14 × 3,961.74
  4. Step 4: Simplify right side
    7,318.92x = 40,014,093.68
  5. Step 5: Solve for x
    x = 40,014,093.68/7,318.92
  6. Step 6: Final answer
    x = 5,467.21

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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.