Home / 2,055.38-2,836.40-1,171.18

Finding the Fourth Proportional to 2,055.38, 2,836.40 and 1,171.18

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Solution

The fourth proportional to 2,055.38, 2,836.40 and 1,171.18 is: 1,616.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,055.38 : 2,836.40 = 1,171.18 : x
  2. Step 2: Convert to fraction form
    2,055.38/2,836.40 = 1,171.18/x
  3. Step 3: Cross multiply
    2,055.38x = 2,836.40 × 1,171.18
  4. Step 4: Simplify right side
    2,055.38x = 3,321,934.95
  5. Step 5: Solve for x
    x = 3,321,934.95/2,055.38
  6. Step 6: Final answer
    x = 1,616.21

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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.