Home / 2,912.48-4,363.44-2,131.64

Finding the Fourth Proportional to 2,912.48, 4,363.44 and 2,131.64

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Solution

The fourth proportional to 2,912.48, 4,363.44 and 2,131.64 is: 3,193.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.48 : 4,363.44 = 2,131.64 : x
  2. Step 2: Convert to fraction form
    2,912.48/4,363.44 = 2,131.64/x
  3. Step 3: Cross multiply
    2,912.48x = 4,363.44 × 2,131.64
  4. Step 4: Simplify right side
    2,912.48x = 9,301,283.24
  5. Step 5: Solve for x
    x = 9,301,283.24/2,912.48
  6. Step 6: Final answer
    x = 3,193.60

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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.