Home / 1,272.44-1,916.54-1,182.32

Finding the Fourth Proportional to 1,272.44, 1,916.54 and 1,182.32

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Solution

The fourth proportional to 1,272.44, 1,916.54 and 1,182.32 is: 1,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272.44 : 1,916.54 = 1,182.32 : x
  2. Step 2: Convert to fraction form
    1,272.44/1,916.54 = 1,182.32/x
  3. Step 3: Cross multiply
    1,272.44x = 1,916.54 × 1,182.32
  4. Step 4: Simplify right side
    1,272.44x = 2,265,963.57
  5. Step 5: Solve for x
    x = 2,265,963.57/1,272.44
  6. Step 6: Final answer
    x = 1,780.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.