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Finding the Fourth Proportional to 1,910.14, 2,864.37 and 677.14

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Solution

The fourth proportional to 1,910.14, 2,864.37 and 677.14 is: 1,015.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.14 : 2,864.37 = 677.14 : x
  2. Step 2: Convert to fraction form
    1,910.14/2,864.37 = 677.14/x
  3. Step 3: Cross multiply
    1,910.14x = 2,864.37 × 677.14
  4. Step 4: Simplify right side
    1,910.14x = 1,939,579.50
  5. Step 5: Solve for x
    x = 1,939,579.50/1,910.14
  6. Step 6: Final answer
    x = 1,015.41

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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.