Home / 7,405.52-11,103.96-2,786

Finding the Fourth Proportional to 7,405.52, 11,103.96 and 2,786

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Solution

The fourth proportional to 7,405.52, 11,103.96 and 2,786 is: 4,177.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.52 : 11,103.96 = 2,786 : x
  2. Step 2: Convert to fraction form
    7,405.52/11,103.96 = 2,786/x
  3. Step 3: Cross multiply
    7,405.52x = 11,103.96 × 2,786
  4. Step 4: Simplify right side
    7,405.52x = 30,935,632.56
  5. Step 5: Solve for x
    x = 30,935,632.56/7,405.52
  6. Step 6: Final answer
    x = 4,177.37

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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.