Home / 2,181.20-3,279.08-1,700.06

Finding the Fourth Proportional to 2,181.20, 3,279.08 and 1,700.06

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Solution

The fourth proportional to 2,181.20, 3,279.08 and 1,700.06 is: 2,555.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.20 : 3,279.08 = 1,700.06 : x
  2. Step 2: Convert to fraction form
    2,181.20/3,279.08 = 1,700.06/x
  3. Step 3: Cross multiply
    2,181.20x = 3,279.08 × 1,700.06
  4. Step 4: Simplify right side
    2,181.20x = 5,574,620.60
  5. Step 5: Solve for x
    x = 5,574,620.60/2,181.20
  6. Step 6: Final answer
    x = 2,555.76

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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.