Home / 7,141.45-10,712.60-2,758.93

Finding the Fourth Proportional to 7,141.45, 10,712.60 and 2,758.93

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Solution

The fourth proportional to 7,141.45, 10,712.60 and 2,758.93 is: 4,138.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,141.45 : 10,712.60 = 2,758.93 : x
  2. Step 2: Convert to fraction form
    7,141.45/10,712.60 = 2,758.93/x
  3. Step 3: Cross multiply
    7,141.45x = 10,712.60 × 2,758.93
  4. Step 4: Simplify right side
    7,141.45x = 29,555,313.52
  5. Step 5: Solve for x
    x = 29,555,313.52/7,141.45
  6. Step 6: Final answer
    x = 4,138.56

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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.