Home / 3,780.18-5,215.68-2,207.37

Finding the Fourth Proportional to 3,780.18, 5,215.68 and 2,207.37

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Solution

The fourth proportional to 3,780.18, 5,215.68 and 2,207.37 is: 3,045.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.18 : 5,215.68 = 2,207.37 : x
  2. Step 2: Convert to fraction form
    3,780.18/5,215.68 = 2,207.37/x
  3. Step 3: Cross multiply
    3,780.18x = 5,215.68 × 2,207.37
  4. Step 4: Simplify right side
    3,780.18x = 11,512,935.56
  5. Step 5: Solve for x
    x = 11,512,935.56/3,780.18
  6. Step 6: Final answer
    x = 3,045.61

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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.