Home / 3,753.06-5,179.63-2,159.78

Finding the Fourth Proportional to 3,753.06, 5,179.63 and 2,159.78

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Solution

The fourth proportional to 3,753.06, 5,179.63 and 2,159.78 is: 2,980.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.06 : 5,179.63 = 2,159.78 : x
  2. Step 2: Convert to fraction form
    3,753.06/5,179.63 = 2,159.78/x
  3. Step 3: Cross multiply
    3,753.06x = 5,179.63 × 2,159.78
  4. Step 4: Simplify right side
    3,753.06x = 11,186,861.28
  5. Step 5: Solve for x
    x = 11,186,861.28/3,753.06
  6. Step 6: Final answer
    x = 2,980.73

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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.