Home / 2,190.64-3,279.86-1,704.64

Finding the Fourth Proportional to 2,190.64, 3,279.86 and 1,704.64

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Solution

The fourth proportional to 2,190.64, 3,279.86 and 1,704.64 is: 2,552.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.64 : 3,279.86 = 1,704.64 : x
  2. Step 2: Convert to fraction form
    2,190.64/3,279.86 = 1,704.64/x
  3. Step 3: Cross multiply
    2,190.64x = 3,279.86 × 1,704.64
  4. Step 4: Simplify right side
    2,190.64x = 5,590,980.55
  5. Step 5: Solve for x
    x = 5,590,980.55/2,190.64
  6. Step 6: Final answer
    x = 2,552.21

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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.