Home / 2,625.05-3,937.65-677.25

Finding the Fourth Proportional to 2,625.05, 3,937.65 and 677.25

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Solution

The fourth proportional to 2,625.05, 3,937.65 and 677.25 is: 1,015.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.05 : 3,937.65 = 677.25 : x
  2. Step 2: Convert to fraction form
    2,625.05/3,937.65 = 677.25/x
  3. Step 3: Cross multiply
    2,625.05x = 3,937.65 × 677.25
  4. Step 4: Simplify right side
    2,625.05x = 2,666,770.92
  5. Step 5: Solve for x
    x = 2,666,770.92/2,625.05
  6. Step 6: Final answer
    x = 1,015.89

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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.