Home / 2,664.20-4,002.42-1,680.05

Finding the Fourth Proportional to 2,664.20, 4,002.42 and 1,680.05

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Solution

The fourth proportional to 2,664.20, 4,002.42 and 1,680.05 is: 2,523.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.20 : 4,002.42 = 1,680.05 : x
  2. Step 2: Convert to fraction form
    2,664.20/4,002.42 = 1,680.05/x
  3. Step 3: Cross multiply
    2,664.20x = 4,002.42 × 1,680.05
  4. Step 4: Simplify right side
    2,664.20x = 6,724,265.72
  5. Step 5: Solve for x
    x = 6,724,265.72/2,664.20
  6. Step 6: Final answer
    x = 2,523.93

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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.