Home / 2,640.44-3,959.51-1,254.17

Finding the Fourth Proportional to 2,640.44, 3,959.51 and 1,254.17

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Solution

The fourth proportional to 2,640.44, 3,959.51 and 1,254.17 is: 1,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.44 : 3,959.51 = 1,254.17 : x
  2. Step 2: Convert to fraction form
    2,640.44/3,959.51 = 1,254.17/x
  3. Step 3: Cross multiply
    2,640.44x = 3,959.51 × 1,254.17
  4. Step 4: Simplify right side
    2,640.44x = 4,965,872.59
  5. Step 5: Solve for x
    x = 4,965,872.59/2,640.44
  6. Step 6: Final answer
    x = 1,880.70

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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.