Home / 4,913.78-6,781.17-2,675.51

Finding the Fourth Proportional to 4,913.78, 6,781.17 and 2,675.51

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Solution

The fourth proportional to 4,913.78, 6,781.17 and 2,675.51 is: 3,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.78 : 6,781.17 = 2,675.51 : x
  2. Step 2: Convert to fraction form
    4,913.78/6,781.17 = 2,675.51/x
  3. Step 3: Cross multiply
    4,913.78x = 6,781.17 × 2,675.51
  4. Step 4: Simplify right side
    4,913.78x = 18,143,112.80
  5. Step 5: Solve for x
    x = 18,143,112.80/4,913.78
  6. Step 6: Final answer
    x = 3,692.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.