Home / 2,319.64-3,474.60-2,120.44

Finding the Fourth Proportional to 2,319.64, 3,474.60 and 2,120.44

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Solution

The fourth proportional to 2,319.64, 3,474.60 and 2,120.44 is: 3,176.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.64 : 3,474.60 = 2,120.44 : x
  2. Step 2: Convert to fraction form
    2,319.64/3,474.60 = 2,120.44/x
  3. Step 3: Cross multiply
    2,319.64x = 3,474.60 × 2,120.44
  4. Step 4: Simplify right side
    2,319.64x = 7,367,680.82
  5. Step 5: Solve for x
    x = 7,367,680.82/2,319.64
  6. Step 6: Final answer
    x = 3,176.22

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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.