Home / 3,767.40-5,643.80-1,820.97

Finding the Fourth Proportional to 3,767.40, 5,643.80 and 1,820.97

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Solution

The fourth proportional to 3,767.40, 5,643.80 and 1,820.97 is: 2,727.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,767.40 : 5,643.80 = 1,820.97 : x
  2. Step 2: Convert to fraction form
    3,767.40/5,643.80 = 1,820.97/x
  3. Step 3: Cross multiply
    3,767.40x = 5,643.80 × 1,820.97
  4. Step 4: Simplify right side
    3,767.40x = 10,277,181.38
  5. Step 5: Solve for x
    x = 10,277,181.38/3,767.40
  6. Step 6: Final answer
    x = 2,727.92

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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.