Home / 2,187.11-3,018.23-1,192.41

Finding the Fourth Proportional to 2,187.11, 3,018.23 and 1,192.41

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Solution

The fourth proportional to 2,187.11, 3,018.23 and 1,192.41 is: 1,645.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.11 : 3,018.23 = 1,192.41 : x
  2. Step 2: Convert to fraction form
    2,187.11/3,018.23 = 1,192.41/x
  3. Step 3: Cross multiply
    2,187.11x = 3,018.23 × 1,192.41
  4. Step 4: Simplify right side
    2,187.11x = 3,598,964.41
  5. Step 5: Solve for x
    x = 3,598,964.41/2,187.11
  6. Step 6: Final answer
    x = 1,645.53

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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.