Home / 3,571.04-5,354.61-1,990.22

Finding the Fourth Proportional to 3,571.04, 5,354.61 and 1,990.22

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Solution

The fourth proportional to 3,571.04, 5,354.61 and 1,990.22 is: 2,984.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.04 : 5,354.61 = 1,990.22 : x
  2. Step 2: Convert to fraction form
    3,571.04/5,354.61 = 1,990.22/x
  3. Step 3: Cross multiply
    3,571.04x = 5,354.61 × 1,990.22
  4. Step 4: Simplify right side
    3,571.04x = 10,656,847.80
  5. Step 5: Solve for x
    x = 10,656,847.80/3,571.04
  6. Step 6: Final answer
    x = 2,984.24

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Half scale
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Double scale
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Similar ratio
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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.