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Finding the Fourth Proportional to 2,018.17, 3,027.26 and 557.40

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Solution

The fourth proportional to 2,018.17, 3,027.26 and 557.40 is: 836.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.17 : 3,027.26 = 557.40 : x
  2. Step 2: Convert to fraction form
    2,018.17/3,027.26 = 557.40/x
  3. Step 3: Cross multiply
    2,018.17x = 3,027.26 × 557.40
  4. Step 4: Simplify right side
    2,018.17x = 1,687,394.72
  5. Step 5: Solve for x
    x = 1,687,394.72/2,018.17
  6. Step 6: Final answer
    x = 836.10

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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.