Home / 7,172.23-10,761.54-3,660.38

Finding the Fourth Proportional to 7,172.23, 10,761.54 and 3,660.38

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Solution

The fourth proportional to 7,172.23, 10,761.54 and 3,660.38 is: 5,492.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.23 : 10,761.54 = 3,660.38 : x
  2. Step 2: Convert to fraction form
    7,172.23/10,761.54 = 3,660.38/x
  3. Step 3: Cross multiply
    7,172.23x = 10,761.54 × 3,660.38
  4. Step 4: Simplify right side
    7,172.23x = 39,391,359.14
  5. Step 5: Solve for x
    x = 39,391,359.14/7,172.23
  6. Step 6: Final answer
    x = 5,492.20

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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.