Home / 2,875.38-4,313.37-1,231.49

Finding the Fourth Proportional to 2,875.38, 4,313.37 and 1,231.49

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Solution

The fourth proportional to 2,875.38, 4,313.37 and 1,231.49 is: 1,847.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.38 : 4,313.37 = 1,231.49 : x
  2. Step 2: Convert to fraction form
    2,875.38/4,313.37 = 1,231.49/x
  3. Step 3: Cross multiply
    2,875.38x = 4,313.37 × 1,231.49
  4. Step 4: Simplify right side
    2,875.38x = 5,311,850.45
  5. Step 5: Solve for x
    x = 5,311,850.45/2,875.38
  6. Step 6: Final answer
    x = 1,847.36

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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.