Home / 2,860.11-4,291.38-1,936.71

Finding the Fourth Proportional to 2,860.11, 4,291.38 and 1,936.71

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Solution

The fourth proportional to 2,860.11, 4,291.38 and 1,936.71 is: 2,905.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860.11 : 4,291.38 = 1,936.71 : x
  2. Step 2: Convert to fraction form
    2,860.11/4,291.38 = 1,936.71/x
  3. Step 3: Cross multiply
    2,860.11x = 4,291.38 × 1,936.71
  4. Step 4: Simplify right side
    2,860.11x = 8,311,158.56
  5. Step 5: Solve for x
    x = 8,311,158.56/2,860.11
  6. Step 6: Final answer
    x = 2,905.89

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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.