Home / 7,920.80-11,883.08-2,726.52

Finding the Fourth Proportional to 7,920.80, 11,883.08 and 2,726.52

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Solution

The fourth proportional to 7,920.80, 11,883.08 and 2,726.52 is: 4,090.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920.80 : 11,883.08 = 2,726.52 : x
  2. Step 2: Convert to fraction form
    7,920.80/11,883.08 = 2,726.52/x
  3. Step 3: Cross multiply
    7,920.80x = 11,883.08 × 2,726.52
  4. Step 4: Simplify right side
    7,920.80x = 32,399,455.28
  5. Step 5: Solve for x
    x = 32,399,455.28/7,920.80
  6. Step 6: Final answer
    x = 4,090.43

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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.