Home / 3,690.92-5,533.79-1,840.75

Finding the Fourth Proportional to 3,690.92, 5,533.79 and 1,840.75

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Solution

The fourth proportional to 3,690.92, 5,533.79 and 1,840.75 is: 2,759.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.92 : 5,533.79 = 1,840.75 : x
  2. Step 2: Convert to fraction form
    3,690.92/5,533.79 = 1,840.75/x
  3. Step 3: Cross multiply
    3,690.92x = 5,533.79 × 1,840.75
  4. Step 4: Simplify right side
    3,690.92x = 10,186,300.90
  5. Step 5: Solve for x
    x = 10,186,300.90/3,690.92
  6. Step 6: Final answer
    x = 2,759.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.