Home / 3,686.11-5,086.78-2,114.17

Finding the Fourth Proportional to 3,686.11, 5,086.78 and 2,114.17

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Solution

The fourth proportional to 3,686.11, 5,086.78 and 2,114.17 is: 2,917.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.11 : 5,086.78 = 2,114.17 : x
  2. Step 2: Convert to fraction form
    3,686.11/5,086.78 = 2,114.17/x
  3. Step 3: Cross multiply
    3,686.11x = 5,086.78 × 2,114.17
  4. Step 4: Simplify right side
    3,686.11x = 10,754,299.67
  5. Step 5: Solve for x
    x = 10,754,299.67/3,686.11
  6. Step 6: Final answer
    x = 2,917.52

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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.