Home / 1,850.43-2,548.80-1,289.90

Finding the Fourth Proportional to 1,850.43, 2,548.80 and 1,289.90

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Solution

The fourth proportional to 1,850.43, 2,548.80 and 1,289.90 is: 1,776.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.43 : 2,548.80 = 1,289.90 : x
  2. Step 2: Convert to fraction form
    1,850.43/2,548.80 = 1,289.90/x
  3. Step 3: Cross multiply
    1,850.43x = 2,548.80 × 1,289.90
  4. Step 4: Simplify right side
    1,850.43x = 3,287,684.38
  5. Step 5: Solve for x
    x = 3,287,684.38/1,850.43
  6. Step 6: Final answer
    x = 1,776.71

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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.