Home / 3,679.26-5,077.12-2,187.30

Finding the Fourth Proportional to 3,679.26, 5,077.12 and 2,187.30

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Solution

The fourth proportional to 3,679.26, 5,077.12 and 2,187.30 is: 3,018.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.26 : 5,077.12 = 2,187.30 : x
  2. Step 2: Convert to fraction form
    3,679.26/5,077.12 = 2,187.30/x
  3. Step 3: Cross multiply
    3,679.26x = 5,077.12 × 2,187.30
  4. Step 4: Simplify right side
    3,679.26x = 11,105,184.58
  5. Step 5: Solve for x
    x = 11,105,184.58/3,679.26
  6. Step 6: Final answer
    x = 3,018.32

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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.