Home / 2,039.11-2,813.99-1,199.81

Finding the Fourth Proportional to 2,039.11, 2,813.99 and 1,199.81

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Solution

The fourth proportional to 2,039.11, 2,813.99 and 1,199.81 is: 1,655.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.11 : 2,813.99 = 1,199.81 : x
  2. Step 2: Convert to fraction form
    2,039.11/2,813.99 = 1,199.81/x
  3. Step 3: Cross multiply
    2,039.11x = 2,813.99 × 1,199.81
  4. Step 4: Simplify right side
    2,039.11x = 3,376,254.38
  5. Step 5: Solve for x
    x = 3,376,254.38/2,039.11
  6. Step 6: Final answer
    x = 1,655.75

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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.