Home / 3,077.82-4,616.64-1,129.50

Finding the Fourth Proportional to 3,077.82, 4,616.64 and 1,129.50

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Solution

The fourth proportional to 3,077.82, 4,616.64 and 1,129.50 is: 1,694.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.82 : 4,616.64 = 1,129.50 : x
  2. Step 2: Convert to fraction form
    3,077.82/4,616.64 = 1,129.50/x
  3. Step 3: Cross multiply
    3,077.82x = 4,616.64 × 1,129.50
  4. Step 4: Simplify right side
    3,077.82x = 5,214,494.88
  5. Step 5: Solve for x
    x = 5,214,494.88/3,077.82
  6. Step 6: Final answer
    x = 1,694.22

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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.