Home / 2,018.18-3,027.34-557.45

Finding the Fourth Proportional to 2,018.18, 3,027.34 and 557.45

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Solution

The fourth proportional to 2,018.18, 3,027.34 and 557.45 is: 836.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.18 : 3,027.34 = 557.45 : x
  2. Step 2: Convert to fraction form
    2,018.18/3,027.34 = 557.45/x
  3. Step 3: Cross multiply
    2,018.18x = 3,027.34 × 557.45
  4. Step 4: Simplify right side
    2,018.18x = 1,687,587.60
  5. Step 5: Solve for x
    x = 1,687,587.60/2,018.18
  6. Step 6: Final answer
    x = 836.19

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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.