Home / 3,752.82-5,178.60-2,181.03

Finding the Fourth Proportional to 3,752.82, 5,178.60 and 2,181.03

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Solution

The fourth proportional to 3,752.82, 5,178.60 and 2,181.03 is: 3,009.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752.82 : 5,178.60 = 2,181.03 : x
  2. Step 2: Convert to fraction form
    3,752.82/5,178.60 = 2,181.03/x
  3. Step 3: Cross multiply
    3,752.82x = 5,178.60 × 2,181.03
  4. Step 4: Simplify right side
    3,752.82x = 11,294,681.96
  5. Step 5: Solve for x
    x = 11,294,681.96/3,752.82
  6. Step 6: Final answer
    x = 3,009.65

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1.5x scale

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.