Home / 2,086.26-3,129.10-1,459.65

Finding the Fourth Proportional to 2,086.26, 3,129.10 and 1,459.65

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Solution

The fourth proportional to 2,086.26, 3,129.10 and 1,459.65 is: 2,189.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086.26 : 3,129.10 = 1,459.65 : x
  2. Step 2: Convert to fraction form
    2,086.26/3,129.10 = 1,459.65/x
  3. Step 3: Cross multiply
    2,086.26x = 3,129.10 × 1,459.65
  4. Step 4: Simplify right side
    2,086.26x = 4,567,398.90
  5. Step 5: Solve for x
    x = 4,567,398.90/2,086.26
  6. Step 6: Final answer
    x = 2,189.28

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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.