Home / 4,086.36-6,129.56-1,489.30

Finding the Fourth Proportional to 4,086.36, 6,129.56 and 1,489.30

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Solution

The fourth proportional to 4,086.36, 6,129.56 and 1,489.30 is: 2,233.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.36 : 6,129.56 = 1,489.30 : x
  2. Step 2: Convert to fraction form
    4,086.36/6,129.56 = 1,489.30/x
  3. Step 3: Cross multiply
    4,086.36x = 6,129.56 × 1,489.30
  4. Step 4: Simplify right side
    4,086.36x = 9,128,753.71
  5. Step 5: Solve for x
    x = 9,128,753.71/4,086.36
  6. Step 6: Final answer
    x = 2,233.96

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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.