Home / 7,864.88-11,801.20-3,705.26

Finding the Fourth Proportional to 7,864.88, 11,801.20 and 3,705.26

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Solution

The fourth proportional to 7,864.88, 11,801.20 and 3,705.26 is: 5,559.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.88 : 11,801.20 = 3,705.26 : x
  2. Step 2: Convert to fraction form
    7,864.88/11,801.20 = 3,705.26/x
  3. Step 3: Cross multiply
    7,864.88x = 11,801.20 × 3,705.26
  4. Step 4: Simplify right side
    7,864.88x = 43,726,514.31
  5. Step 5: Solve for x
    x = 43,726,514.31/7,864.88
  6. Step 6: Final answer
    x = 5,559.72

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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.