Home / 7,172.16-10,753.80-3,222.64

Finding the Fourth Proportional to 7,172.16, 10,753.80 and 3,222.64

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Solution

The fourth proportional to 7,172.16, 10,753.80 and 3,222.64 is: 4,831.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.16 : 10,753.80 = 3,222.64 : x
  2. Step 2: Convert to fraction form
    7,172.16/10,753.80 = 3,222.64/x
  3. Step 3: Cross multiply
    7,172.16x = 10,753.80 × 3,222.64
  4. Step 4: Simplify right side
    7,172.16x = 34,655,626.03
  5. Step 5: Solve for x
    x = 34,655,626.03/7,172.16
  6. Step 6: Final answer
    x = 4,831.96

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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.