Home / 1,920.00-2,885.42-1,140.14

Finding the Fourth Proportional to 1,920.00, 2,885.42 and 1,140.14

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Solution

The fourth proportional to 1,920.00, 2,885.42 and 1,140.14 is: 1,713.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920.00 : 2,885.42 = 1,140.14 : x
  2. Step 2: Convert to fraction form
    1,920.00/2,885.42 = 1,140.14/x
  3. Step 3: Cross multiply
    1,920.00x = 2,885.42 × 1,140.14
  4. Step 4: Simplify right side
    1,920.00x = 3,289,791.69
  5. Step 5: Solve for x
    x = 3,289,791.69/1,920.00
  6. Step 6: Final answer
    x = 1,713.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.