Home / 7,118.92-10,682.16-3,172.96

Finding the Fourth Proportional to 7,118.92, 10,682.16 and 3,172.96

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Solution

The fourth proportional to 7,118.92, 10,682.16 and 3,172.96 is: 4,761.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.92 : 10,682.16 = 3,172.96 : x
  2. Step 2: Convert to fraction form
    7,118.92/10,682.16 = 3,172.96/x
  3. Step 3: Cross multiply
    7,118.92x = 10,682.16 × 3,172.96
  4. Step 4: Simplify right side
    7,118.92x = 33,894,066.39
  5. Step 5: Solve for x
    x = 33,894,066.39/7,118.92
  6. Step 6: Final answer
    x = 4,761.12

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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.