Home / 2,020.36-3,030.92-787.52

Finding the Fourth Proportional to 2,020.36, 3,030.92 and 787.52

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Solution

The fourth proportional to 2,020.36, 3,030.92 and 787.52 is: 1,181.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.36 : 3,030.92 = 787.52 : x
  2. Step 2: Convert to fraction form
    2,020.36/3,030.92 = 787.52/x
  3. Step 3: Cross multiply
    2,020.36x = 3,030.92 × 787.52
  4. Step 4: Simplify right side
    2,020.36x = 2,386,910.12
  5. Step 5: Solve for x
    x = 2,386,910.12/2,020.36
  6. Step 6: Final answer
    x = 1,181.43

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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.