Home / 3,016.36-4,155.40-2,868.12

Finding the Fourth Proportional to 3,016.36, 4,155.40 and 2,868.12

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Solution

The fourth proportional to 3,016.36, 4,155.40 and 2,868.12 is: 3,951.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,016.36 : 4,155.40 = 2,868.12 : x
  2. Step 2: Convert to fraction form
    3,016.36/4,155.40 = 2,868.12/x
  3. Step 3: Cross multiply
    3,016.36x = 4,155.40 × 2,868.12
  4. Step 4: Simplify right side
    3,016.36x = 11,918,185.85
  5. Step 5: Solve for x
    x = 11,918,185.85/3,016.36
  6. Step 6: Final answer
    x = 3,951.18

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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.