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Finding the Fourth Proportional to 4,068.88, 5,615.05 and 2,205.88

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Solution

The fourth proportional to 4,068.88, 5,615.05 and 2,205.88 is: 3,044.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,068.88 : 5,615.05 = 2,205.88 : x
  2. Step 2: Convert to fraction form
    4,068.88/5,615.05 = 2,205.88/x
  3. Step 3: Cross multiply
    4,068.88x = 5,615.05 × 2,205.88
  4. Step 4: Simplify right side
    4,068.88x = 12,386,126.49
  5. Step 5: Solve for x
    x = 12,386,126.49/4,068.88
  6. Step 6: Final answer
    x = 3,044.11

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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.