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Finding the Fourth Proportional to 3,003.67, 4,509.15 and 1,912.60

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Solution

The fourth proportional to 3,003.67, 4,509.15 and 1,912.60 is: 2,871.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,003.67 : 4,509.15 = 1,912.60 : x
  2. Step 2: Convert to fraction form
    3,003.67/4,509.15 = 1,912.60/x
  3. Step 3: Cross multiply
    3,003.67x = 4,509.15 × 1,912.60
  4. Step 4: Simplify right side
    3,003.67x = 8,624,200.29
  5. Step 5: Solve for x
    x = 8,624,200.29/3,003.67
  6. Step 6: Final answer
    x = 2,871.22

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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.