Home / 2,020.20-2,787.93-1,135.95

Finding the Fourth Proportional to 2,020.20, 2,787.93 and 1,135.95

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Solution

The fourth proportional to 2,020.20, 2,787.93 and 1,135.95 is: 1,567.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.20 : 2,787.93 = 1,135.95 : x
  2. Step 2: Convert to fraction form
    2,020.20/2,787.93 = 1,135.95/x
  3. Step 3: Cross multiply
    2,020.20x = 2,787.93 × 1,135.95
  4. Step 4: Simplify right side
    2,020.20x = 3,166,949.08
  5. Step 5: Solve for x
    x = 3,166,949.08/2,020.20
  6. Step 6: Final answer
    x = 1,567.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.