Home / 2,275.66-3,415.63-1,180.80

Finding the Fourth Proportional to 2,275.66, 3,415.63 and 1,180.80

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Solution

The fourth proportional to 2,275.66, 3,415.63 and 1,180.80 is: 1,772.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.66 : 3,415.63 = 1,180.80 : x
  2. Step 2: Convert to fraction form
    2,275.66/3,415.63 = 1,180.80/x
  3. Step 3: Cross multiply
    2,275.66x = 3,415.63 × 1,180.80
  4. Step 4: Simplify right side
    2,275.66x = 4,033,175.90
  5. Step 5: Solve for x
    x = 4,033,175.90/2,275.66
  6. Step 6: Final answer
    x = 1,772.31

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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.