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Finding the Fourth Proportional to 3,057.88, 4,220.30 and 2,010.55

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Solution

The fourth proportional to 3,057.88, 4,220.30 and 2,010.55 is: 2,774.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.88 : 4,220.30 = 2,010.55 : x
  2. Step 2: Convert to fraction form
    3,057.88/4,220.30 = 2,010.55/x
  3. Step 3: Cross multiply
    3,057.88x = 4,220.30 × 2,010.55
  4. Step 4: Simplify right side
    3,057.88x = 8,485,124.17
  5. Step 5: Solve for x
    x = 8,485,124.17/3,057.88
  6. Step 6: Final answer
    x = 2,774.84

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.