Home / 3,738.08-5,160.30-2,165.88

Finding the Fourth Proportional to 3,738.08, 5,160.30 and 2,165.88

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Solution

The fourth proportional to 3,738.08, 5,160.30 and 2,165.88 is: 2,989.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.08 : 5,160.30 = 2,165.88 : x
  2. Step 2: Convert to fraction form
    3,738.08/5,160.30 = 2,165.88/x
  3. Step 3: Cross multiply
    3,738.08x = 5,160.30 × 2,165.88
  4. Step 4: Simplify right side
    3,738.08x = 11,176,590.56
  5. Step 5: Solve for x
    x = 11,176,590.56/3,738.08
  6. Step 6: Final answer
    x = 2,989.93

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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.