Home / 2,671.26-4,005.74-1,421.62

Finding the Fourth Proportional to 2,671.26, 4,005.74 and 1,421.62

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Solution

The fourth proportional to 2,671.26, 4,005.74 and 1,421.62 is: 2,131.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,671.26 : 4,005.74 = 1,421.62 : x
  2. Step 2: Convert to fraction form
    2,671.26/4,005.74 = 1,421.62/x
  3. Step 3: Cross multiply
    2,671.26x = 4,005.74 × 1,421.62
  4. Step 4: Simplify right side
    2,671.26x = 5,694,640.10
  5. Step 5: Solve for x
    x = 5,694,640.10/2,671.26
  6. Step 6: Final answer
    x = 2,131.82

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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.