Home / 3,105.36-4,659.08-1,255.47

Finding the Fourth Proportional to 3,105.36, 4,659.08 and 1,255.47

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Solution

The fourth proportional to 3,105.36, 4,659.08 and 1,255.47 is: 1,883.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.36 : 4,659.08 = 1,255.47 : x
  2. Step 2: Convert to fraction form
    3,105.36/4,659.08 = 1,255.47/x
  3. Step 3: Cross multiply
    3,105.36x = 4,659.08 × 1,255.47
  4. Step 4: Simplify right side
    3,105.36x = 5,849,328.89
  5. Step 5: Solve for x
    x = 5,849,328.89/3,105.36
  6. Step 6: Final answer
    x = 1,883.62

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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.