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Finding the Fourth Proportional to 2,677.29, 4,015.94 and 729.51

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Solution

The fourth proportional to 2,677.29, 4,015.94 and 729.51 is: 1,094.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,677.29 : 4,015.94 = 729.51 : x
  2. Step 2: Convert to fraction form
    2,677.29/4,015.94 = 729.51/x
  3. Step 3: Cross multiply
    2,677.29x = 4,015.94 × 729.51
  4. Step 4: Simplify right side
    2,677.29x = 2,929,664.74
  5. Step 5: Solve for x
    x = 2,929,664.74/2,677.29
  6. Step 6: Final answer
    x = 1,094.27

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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.