Home / 3,682.32-5,081.16-2,190.30

Finding the Fourth Proportional to 3,682.32, 5,081.16 and 2,190.30

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Solution

The fourth proportional to 3,682.32, 5,081.16 and 2,190.30 is: 3,022.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,682.32 : 5,081.16 = 2,190.30 : x
  2. Step 2: Convert to fraction form
    3,682.32/5,081.16 = 2,190.30/x
  3. Step 3: Cross multiply
    3,682.32x = 5,081.16 × 2,190.30
  4. Step 4: Simplify right side
    3,682.32x = 11,129,264.75
  5. Step 5: Solve for x
    x = 11,129,264.75/3,682.32
  6. Step 6: Final answer
    x = 3,022.35

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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.