Home / 3,015.72-4,523.58-1,989.48

Finding the Fourth Proportional to 3,015.72, 4,523.58 and 1,989.48

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Solution

The fourth proportional to 3,015.72, 4,523.58 and 1,989.48 is: 2,984.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.72 : 4,523.58 = 1,989.48 : x
  2. Step 2: Convert to fraction form
    3,015.72/4,523.58 = 1,989.48/x
  3. Step 3: Cross multiply
    3,015.72x = 4,523.58 × 1,989.48
  4. Step 4: Simplify right side
    3,015.72x = 8,999,571.94
  5. Step 5: Solve for x
    x = 8,999,571.94/3,015.72
  6. Step 6: Final answer
    x = 2,984.22

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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.