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Finding the Fourth Proportional to 2,012.61, 3,018.01 and 625.54

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Solution

The fourth proportional to 2,012.61, 3,018.01 and 625.54 is: 938.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.61 : 3,018.01 = 625.54 : x
  2. Step 2: Convert to fraction form
    2,012.61/3,018.01 = 625.54/x
  3. Step 3: Cross multiply
    2,012.61x = 3,018.01 × 625.54
  4. Step 4: Simplify right side
    2,012.61x = 1,887,882.85
  5. Step 5: Solve for x
    x = 1,887,882.85/2,012.61
  6. Step 6: Final answer
    x = 938.03

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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.