Home / 3,742.82-5,603.36-2,178.05

Finding the Fourth Proportional to 3,742.82, 5,603.36 and 2,178.05

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Solution

The fourth proportional to 3,742.82, 5,603.36 and 2,178.05 is: 3,260.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.82 : 5,603.36 = 2,178.05 : x
  2. Step 2: Convert to fraction form
    3,742.82/5,603.36 = 2,178.05/x
  3. Step 3: Cross multiply
    3,742.82x = 5,603.36 × 2,178.05
  4. Step 4: Simplify right side
    3,742.82x = 12,204,359.34
  5. Step 5: Solve for x
    x = 12,204,359.34/3,742.82
  6. Step 6: Final answer
    x = 3,260.74

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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.