Home / 3,771.77-5,204.91-2,178.39

Finding the Fourth Proportional to 3,771.77, 5,204.91 and 2,178.39

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Solution

The fourth proportional to 3,771.77, 5,204.91 and 2,178.39 is: 3,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.77 : 5,204.91 = 2,178.39 : x
  2. Step 2: Convert to fraction form
    3,771.77/5,204.91 = 2,178.39/x
  3. Step 3: Cross multiply
    3,771.77x = 5,204.91 × 2,178.39
  4. Step 4: Simplify right side
    3,771.77x = 11,338,323.89
  5. Step 5: Solve for x
    x = 11,338,323.89/3,771.77
  6. Step 6: Final answer
    x = 3,006.10

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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.