Home / 3,077.75-4,617.05-1,129.47

Finding the Fourth Proportional to 3,077.75, 4,617.05 and 1,129.47

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Solution

The fourth proportional to 3,077.75, 4,617.05 and 1,129.47 is: 1,694.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.75 : 4,617.05 = 1,129.47 : x
  2. Step 2: Convert to fraction form
    3,077.75/4,617.05 = 1,129.47/x
  3. Step 3: Cross multiply
    3,077.75x = 4,617.05 × 1,129.47
  4. Step 4: Simplify right side
    3,077.75x = 5,214,813.82
  5. Step 5: Solve for x
    x = 5,214,813.82/3,077.75
  6. Step 6: Final answer
    x = 1,694.36

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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.