Home / 1,516.73-2,272.19-787.05

Finding the Fourth Proportional to 1,516.73, 2,272.19 and 787.05

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Solution

The fourth proportional to 1,516.73, 2,272.19 and 787.05 is: 1,179.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.73 : 2,272.19 = 787.05 : x
  2. Step 2: Convert to fraction form
    1,516.73/2,272.19 = 787.05/x
  3. Step 3: Cross multiply
    1,516.73x = 2,272.19 × 787.05
  4. Step 4: Simplify right side
    1,516.73x = 1,788,323.20
  5. Step 5: Solve for x
    x = 1,788,323.20/1,516.73
  6. Step 6: Final answer
    x = 1,179.07

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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.