Home / 2,186.89-3,017.73-1,192.11

Finding the Fourth Proportional to 2,186.89, 3,017.73 and 1,192.11

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Solution

The fourth proportional to 2,186.89, 3,017.73 and 1,192.11 is: 1,645.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.89 : 3,017.73 = 1,192.11 : x
  2. Step 2: Convert to fraction form
    2,186.89/3,017.73 = 1,192.11/x
  3. Step 3: Cross multiply
    2,186.89x = 3,017.73 × 1,192.11
  4. Step 4: Simplify right side
    2,186.89x = 3,597,466.11
  5. Step 5: Solve for x
    x = 3,597,466.11/2,186.89
  6. Step 6: Final answer
    x = 1,645.01

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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.