Home / 1,849.80-2,781.09-1,487.12

Finding the Fourth Proportional to 1,849.80, 2,781.09 and 1,487.12

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Solution

The fourth proportional to 1,849.80, 2,781.09 and 1,487.12 is: 2,235.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,849.80 : 2,781.09 = 1,487.12 : x
  2. Step 2: Convert to fraction form
    1,849.80/2,781.09 = 1,487.12/x
  3. Step 3: Cross multiply
    1,849.80x = 2,781.09 × 1,487.12
  4. Step 4: Simplify right side
    1,849.80x = 4,135,800.66
  5. Step 5: Solve for x
    x = 4,135,800.66/1,849.80
  6. Step 6: Final answer
    x = 2,235.81

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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.