Home / 4,619.80-6,920.79-2,666.08

Finding the Fourth Proportional to 4,619.80, 6,920.79 and 2,666.08

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Solution

The fourth proportional to 4,619.80, 6,920.79 and 2,666.08 is: 3,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,619.80 : 6,920.79 = 2,666.08 : x
  2. Step 2: Convert to fraction form
    4,619.80/6,920.79 = 2,666.08/x
  3. Step 3: Cross multiply
    4,619.80x = 6,920.79 × 2,666.08
  4. Step 4: Simplify right side
    4,619.80x = 18,451,379.80
  5. Step 5: Solve for x
    x = 18,451,379.80/4,619.80
  6. Step 6: Final answer
    x = 3,993.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.