Home / 2,186.96-3,018.08-1,192.28

Finding the Fourth Proportional to 2,186.96, 3,018.08 and 1,192.28

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Solution

The fourth proportional to 2,186.96, 3,018.08 and 1,192.28 is: 1,645.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.96 : 3,018.08 = 1,192.28 : x
  2. Step 2: Convert to fraction form
    2,186.96/3,018.08 = 1,192.28/x
  3. Step 3: Cross multiply
    2,186.96x = 3,018.08 × 1,192.28
  4. Step 4: Simplify right side
    2,186.96x = 3,598,396.42
  5. Step 5: Solve for x
    x = 3,598,396.42/2,186.96
  6. Step 6: Final answer
    x = 1,645.39

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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.