Home / 2,187.78-3,282.22-727.06

Finding the Fourth Proportional to 2,187.78, 3,282.22 and 727.06

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Solution

The fourth proportional to 2,187.78, 3,282.22 and 727.06 is: 1,090.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.78 : 3,282.22 = 727.06 : x
  2. Step 2: Convert to fraction form
    2,187.78/3,282.22 = 727.06/x
  3. Step 3: Cross multiply
    2,187.78x = 3,282.22 × 727.06
  4. Step 4: Simplify right side
    2,187.78x = 2,386,370.87
  5. Step 5: Solve for x
    x = 2,386,370.87/2,187.78
  6. Step 6: Final answer
    x = 1,090.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.