Home / 3,771.48-5,204.89-2,178.43

Finding the Fourth Proportional to 3,771.48, 5,204.89 and 2,178.43

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Solution

The fourth proportional to 3,771.48, 5,204.89 and 2,178.43 is: 3,006.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.48 : 5,204.89 = 2,178.43 : x
  2. Step 2: Convert to fraction form
    3,771.48/5,204.89 = 2,178.43/x
  3. Step 3: Cross multiply
    3,771.48x = 5,204.89 × 2,178.43
  4. Step 4: Simplify right side
    3,771.48x = 11,338,478.23
  5. Step 5: Solve for x
    x = 11,338,478.23/3,771.48
  6. Step 6: Final answer
    x = 3,006.37

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1.5x scale

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.