Home / 2,808.41-4,212.64-1,327.15

Finding the Fourth Proportional to 2,808.41, 4,212.64 and 1,327.15

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Solution

The fourth proportional to 2,808.41, 4,212.64 and 1,327.15 is: 1,990.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.41 : 4,212.64 = 1,327.15 : x
  2. Step 2: Convert to fraction form
    2,808.41/4,212.64 = 1,327.15/x
  3. Step 3: Cross multiply
    2,808.41x = 4,212.64 × 1,327.15
  4. Step 4: Simplify right side
    2,808.41x = 5,590,812.10
  5. Step 5: Solve for x
    x = 5,590,812.10/2,808.41
  6. Step 6: Final answer
    x = 1,990.74

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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.