Home / 3,679.08-5,076.68-2,187.06

Finding the Fourth Proportional to 3,679.08, 5,076.68 and 2,187.06

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Solution

The fourth proportional to 3,679.08, 5,076.68 and 2,187.06 is: 3,017.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.08 : 5,076.68 = 2,187.06 : x
  2. Step 2: Convert to fraction form
    3,679.08/5,076.68 = 2,187.06/x
  3. Step 3: Cross multiply
    3,679.08x = 5,076.68 × 2,187.06
  4. Step 4: Simplify right side
    3,679.08x = 11,103,003.76
  5. Step 5: Solve for x
    x = 11,103,003.76/3,679.08
  6. Step 6: Final answer
    x = 3,017.88

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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.