Home / 7,143.96-10,717.30-2,530.20

Finding the Fourth Proportional to 7,143.96, 10,717.30 and 2,530.20

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Solution

The fourth proportional to 7,143.96, 10,717.30 and 2,530.20 is: 3,795.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.96 : 10,717.30 = 2,530.20 : x
  2. Step 2: Convert to fraction form
    7,143.96/10,717.30 = 2,530.20/x
  3. Step 3: Cross multiply
    7,143.96x = 10,717.30 × 2,530.20
  4. Step 4: Simplify right side
    7,143.96x = 27,116,912.46
  5. Step 5: Solve for x
    x = 27,116,912.46/7,143.96
  6. Step 6: Final answer
    x = 3,795.78

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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.