Home / 3,086.56-4,629.36-1,137.28

Finding the Fourth Proportional to 3,086.56, 4,629.36 and 1,137.28

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Solution

The fourth proportional to 3,086.56, 4,629.36 and 1,137.28 is: 1,705.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.56 : 4,629.36 = 1,137.28 : x
  2. Step 2: Convert to fraction form
    3,086.56/4,629.36 = 1,137.28/x
  3. Step 3: Cross multiply
    3,086.56x = 4,629.36 × 1,137.28
  4. Step 4: Simplify right side
    3,086.56x = 5,264,878.54
  5. Step 5: Solve for x
    x = 5,264,878.54/3,086.56
  6. Step 6: Final answer
    x = 1,705.74

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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.