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Finding the Fourth Proportional to 2,906.11, 4,359.13 and 714.86

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Solution

The fourth proportional to 2,906.11, 4,359.13 and 714.86 is: 1,072.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.11 : 4,359.13 = 714.86 : x
  2. Step 2: Convert to fraction form
    2,906.11/4,359.13 = 714.86/x
  3. Step 3: Cross multiply
    2,906.11x = 4,359.13 × 714.86
  4. Step 4: Simplify right side
    2,906.11x = 3,116,167.67
  5. Step 5: Solve for x
    x = 3,116,167.67/2,906.11
  6. Step 6: Final answer
    x = 1,072.28

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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.