Home / 3,772.08-5,204.62-2,178.38

Finding the Fourth Proportional to 3,772.08, 5,204.62 and 2,178.38

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Solution

The fourth proportional to 3,772.08, 5,204.62 and 2,178.38 is: 3,005.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.08 : 5,204.62 = 2,178.38 : x
  2. Step 2: Convert to fraction form
    3,772.08/5,204.62 = 2,178.38/x
  3. Step 3: Cross multiply
    3,772.08x = 5,204.62 × 2,178.38
  4. Step 4: Simplify right side
    3,772.08x = 11,337,640.12
  5. Step 5: Solve for x
    x = 11,337,640.12/3,772.08
  6. Step 6: Final answer
    x = 3,005.67

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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.