Home / 2,427.21-3,643.88-2,021.31

Finding the Fourth Proportional to 2,427.21, 3,643.88 and 2,021.31

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Solution

The fourth proportional to 2,427.21, 3,643.88 and 2,021.31 is: 3,034.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.21 : 3,643.88 = 2,021.31 : x
  2. Step 2: Convert to fraction form
    2,427.21/3,643.88 = 2,021.31/x
  3. Step 3: Cross multiply
    2,427.21x = 3,643.88 × 2,021.31
  4. Step 4: Simplify right side
    2,427.21x = 7,365,400.98
  5. Step 5: Solve for x
    x = 7,365,400.98/2,427.21
  6. Step 6: Final answer
    x = 3,034.51

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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.