Home / 3,619.50-4,979.79-3,225.66

Finding the Fourth Proportional to 3,619.50, 4,979.79 and 3,225.66

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Solution

The fourth proportional to 3,619.50, 4,979.79 and 3,225.66 is: 4,437.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.50 : 4,979.79 = 3,225.66 : x
  2. Step 2: Convert to fraction form
    3,619.50/4,979.79 = 3,225.66/x
  3. Step 3: Cross multiply
    3,619.50x = 4,979.79 × 3,225.66
  4. Step 4: Simplify right side
    3,619.50x = 16,063,109.41
  5. Step 5: Solve for x
    x = 16,063,109.41/3,619.50
  6. Step 6: Final answer
    x = 4,437.94

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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.