Home / 2,161.35-3,242.71-1,643.83

Finding the Fourth Proportional to 2,161.35, 3,242.71 and 1,643.83

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Solution

The fourth proportional to 2,161.35, 3,242.71 and 1,643.83 is: 2,466.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161.35 : 3,242.71 = 1,643.83 : x
  2. Step 2: Convert to fraction form
    2,161.35/3,242.71 = 1,643.83/x
  3. Step 3: Cross multiply
    2,161.35x = 3,242.71 × 1,643.83
  4. Step 4: Simplify right side
    2,161.35x = 5,330,439.55
  5. Step 5: Solve for x
    x = 5,330,439.55/2,161.35
  6. Step 6: Final answer
    x = 2,466.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.