Home / 7,705.22-11,556.95-2,159.01

Finding the Fourth Proportional to 7,705.22, 11,556.95 and 2,159.01

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Solution

The fourth proportional to 7,705.22, 11,556.95 and 2,159.01 is: 3,238.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.22 : 11,556.95 = 2,159.01 : x
  2. Step 2: Convert to fraction form
    7,705.22/11,556.95 = 2,159.01/x
  3. Step 3: Cross multiply
    7,705.22x = 11,556.95 × 2,159.01
  4. Step 4: Simplify right side
    7,705.22x = 24,951,559.82
  5. Step 5: Solve for x
    x = 24,951,559.82/7,705.22
  6. Step 6: Final answer
    x = 3,238.27

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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.