Home / 2,020.11-2,787.48-1,180.95

Finding the Fourth Proportional to 2,020.11, 2,787.48 and 1,180.95

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Solution

The fourth proportional to 2,020.11, 2,787.48 and 1,180.95 is: 1,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.11 : 2,787.48 = 1,180.95 : x
  2. Step 2: Convert to fraction form
    2,020.11/2,787.48 = 1,180.95/x
  3. Step 3: Cross multiply
    2,020.11x = 2,787.48 × 1,180.95
  4. Step 4: Simplify right side
    2,020.11x = 3,291,874.51
  5. Step 5: Solve for x
    x = 3,291,874.51/2,020.11
  6. Step 6: Final answer
    x = 1,629.55

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1.5x scale

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.