Home / 2,115.06-3,155.25-2,055.48

Finding the Fourth Proportional to 2,115.06, 3,155.25 and 2,055.48

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Solution

The fourth proportional to 2,115.06, 3,155.25 and 2,055.48 is: 3,066.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115.06 : 3,155.25 = 2,055.48 : x
  2. Step 2: Convert to fraction form
    2,115.06/3,155.25 = 2,055.48/x
  3. Step 3: Cross multiply
    2,115.06x = 3,155.25 × 2,055.48
  4. Step 4: Simplify right side
    2,115.06x = 6,485,553.27
  5. Step 5: Solve for x
    x = 6,485,553.27/2,115.06
  6. Step 6: Final answer
    x = 3,066.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.