Home / 2,206.85-3,307.97-1,620.98

Finding the Fourth Proportional to 2,206.85, 3,307.97 and 1,620.98

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Solution

The fourth proportional to 2,206.85, 3,307.97 and 1,620.98 is: 2,429.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,206.85 : 3,307.97 = 1,620.98 : x
  2. Step 2: Convert to fraction form
    2,206.85/3,307.97 = 1,620.98/x
  3. Step 3: Cross multiply
    2,206.85x = 3,307.97 × 1,620.98
  4. Step 4: Simplify right side
    2,206.85x = 5,362,145.11
  5. Step 5: Solve for x
    x = 5,362,145.11/2,206.85
  6. Step 6: Final answer
    x = 2,429.77

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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.