Home / 3,619.53-4,997.19-2,778.62

Finding the Fourth Proportional to 3,619.53, 4,997.19 and 2,778.62

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Solution

The fourth proportional to 3,619.53, 4,997.19 and 2,778.62 is: 3,836.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.53 : 4,997.19 = 2,778.62 : x
  2. Step 2: Convert to fraction form
    3,619.53/4,997.19 = 2,778.62/x
  3. Step 3: Cross multiply
    3,619.53x = 4,997.19 × 2,778.62
  4. Step 4: Simplify right side
    3,619.53x = 13,885,292.08
  5. Step 5: Solve for x
    x = 13,885,292.08/3,619.53
  6. Step 6: Final answer
    x = 3,836.21

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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.