Home / 2,159.22-3,240.26-1,186

Finding the Fourth Proportional to 2,159.22, 3,240.26 and 1,186

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Solution

The fourth proportional to 2,159.22, 3,240.26 and 1,186 is: 1,779.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159.22 : 3,240.26 = 1,186 : x
  2. Step 2: Convert to fraction form
    2,159.22/3,240.26 = 1,186/x
  3. Step 3: Cross multiply
    2,159.22x = 3,240.26 × 1,186
  4. Step 4: Simplify right side
    2,159.22x = 3,842,948.36
  5. Step 5: Solve for x
    x = 3,842,948.36/2,159.22
  6. Step 6: Final answer
    x = 1,779.79

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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.