Home / 2,134.31-3,197.30-1,207.05

Finding the Fourth Proportional to 2,134.31, 3,197.30 and 1,207.05

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Solution

The fourth proportional to 2,134.31, 3,197.30 and 1,207.05 is: 1,808.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.31 : 3,197.30 = 1,207.05 : x
  2. Step 2: Convert to fraction form
    2,134.31/3,197.30 = 1,207.05/x
  3. Step 3: Cross multiply
    2,134.31x = 3,197.30 × 1,207.05
  4. Step 4: Simplify right side
    2,134.31x = 3,859,294.93
  5. Step 5: Solve for x
    x = 3,859,294.93/2,134.31
  6. Step 6: Final answer
    x = 1,808.22

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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.