Home / 3,669.86-5,063.61-2,178.27

Finding the Fourth Proportional to 3,669.86, 5,063.61 and 2,178.27

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Solution

The fourth proportional to 3,669.86, 5,063.61 and 2,178.27 is: 3,005.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.86 : 5,063.61 = 2,178.27 : x
  2. Step 2: Convert to fraction form
    3,669.86/5,063.61 = 2,178.27/x
  3. Step 3: Cross multiply
    3,669.86x = 5,063.61 × 2,178.27
  4. Step 4: Simplify right side
    3,669.86x = 11,029,909.75
  5. Step 5: Solve for x
    x = 11,029,909.75/3,669.86
  6. Step 6: Final answer
    x = 3,005.54

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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.