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Finding the Fourth Proportional to 2,013.12, 3,019.27 and 552.16

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Solution

The fourth proportional to 2,013.12, 3,019.27 and 552.16 is: 828.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.12 : 3,019.27 = 552.16 : x
  2. Step 2: Convert to fraction form
    2,013.12/3,019.27 = 552.16/x
  3. Step 3: Cross multiply
    2,013.12x = 3,019.27 × 552.16
  4. Step 4: Simplify right side
    2,013.12x = 1,667,120.12
  5. Step 5: Solve for x
    x = 1,667,120.12/2,013.12
  6. Step 6: Final answer
    x = 828.13

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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.