Home / 7,139.22-10,709.73-2,760.54

Finding the Fourth Proportional to 7,139.22, 10,709.73 and 2,760.54

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Solution

The fourth proportional to 7,139.22, 10,709.73 and 2,760.54 is: 4,141.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.22 : 10,709.73 = 2,760.54 : x
  2. Step 2: Convert to fraction form
    7,139.22/10,709.73 = 2,760.54/x
  3. Step 3: Cross multiply
    7,139.22x = 10,709.73 × 2,760.54
  4. Step 4: Simplify right side
    7,139.22x = 29,564,638.05
  5. Step 5: Solve for x
    x = 29,564,638.05/7,139.22
  6. Step 6: Final answer
    x = 4,141.16

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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.