Home / 2,159.31-3,233.50-1,335.09

Finding the Fourth Proportional to 2,159.31, 3,233.50 and 1,335.09

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Solution

The fourth proportional to 2,159.31, 3,233.50 and 1,335.09 is: 1,999.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159.31 : 3,233.50 = 1,335.09 : x
  2. Step 2: Convert to fraction form
    2,159.31/3,233.50 = 1,335.09/x
  3. Step 3: Cross multiply
    2,159.31x = 3,233.50 × 1,335.09
  4. Step 4: Simplify right side
    2,159.31x = 4,316,990.67
  5. Step 5: Solve for x
    x = 4,316,990.67/2,159.31
  6. Step 6: Final answer
    x = 1,999.25

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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.