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Finding the Fourth Proportional to 3,012.84, 4,515.12 and 1,548.90

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Solution

The fourth proportional to 3,012.84, 4,515.12 and 1,548.90 is: 2,321.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.84 : 4,515.12 = 1,548.90 : x
  2. Step 2: Convert to fraction form
    3,012.84/4,515.12 = 1,548.90/x
  3. Step 3: Cross multiply
    3,012.84x = 4,515.12 × 1,548.90
  4. Step 4: Simplify right side
    3,012.84x = 6,993,469.37
  5. Step 5: Solve for x
    x = 6,993,469.37/3,012.84
  6. Step 6: Final answer
    x = 2,321.22

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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.