Home / 7,140.30-10,713.48-3,849.56

Finding the Fourth Proportional to 7,140.30, 10,713.48 and 3,849.56

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Solution

The fourth proportional to 7,140.30, 10,713.48 and 3,849.56 is: 5,775.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.30 : 10,713.48 = 3,849.56 : x
  2. Step 2: Convert to fraction form
    7,140.30/10,713.48 = 3,849.56/x
  3. Step 3: Cross multiply
    7,140.30x = 10,713.48 × 3,849.56
  4. Step 4: Simplify right side
    7,140.30x = 41,242,177.89
  5. Step 5: Solve for x
    x = 41,242,177.89/7,140.30
  6. Step 6: Final answer
    x = 5,775.97

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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.