Home / 2,020.19-2,787.90-1,180.97

Finding the Fourth Proportional to 2,020.19, 2,787.90 and 1,180.97

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Solution

The fourth proportional to 2,020.19, 2,787.90 and 1,180.97 is: 1,629.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.19 : 2,787.90 = 1,180.97 : x
  2. Step 2: Convert to fraction form
    2,020.19/2,787.90 = 1,180.97/x
  3. Step 3: Cross multiply
    2,020.19x = 2,787.90 × 1,180.97
  4. Step 4: Simplify right side
    2,020.19x = 3,292,412.32
  5. Step 5: Solve for x
    x = 3,292,412.32/2,020.19
  6. Step 6: Final answer
    x = 1,629.75

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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.