Home / 4,190.20-5,782.38-2,327.20

Finding the Fourth Proportional to 4,190.20, 5,782.38 and 2,327.20

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Solution

The fourth proportional to 4,190.20, 5,782.38 and 2,327.20 is: 3,211.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.20 : 5,782.38 = 2,327.20 : x
  2. Step 2: Convert to fraction form
    4,190.20/5,782.38 = 2,327.20/x
  3. Step 3: Cross multiply
    4,190.20x = 5,782.38 × 2,327.20
  4. Step 4: Simplify right side
    4,190.20x = 13,456,754.74
  5. Step 5: Solve for x
    x = 13,456,754.74/4,190.20
  6. Step 6: Final answer
    x = 3,211.48

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Half scale
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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.