Home / 2,254.21-3,381.31-1,021.39

Finding the Fourth Proportional to 2,254.21, 3,381.31 and 1,021.39

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Solution

The fourth proportional to 2,254.21, 3,381.31 and 1,021.39 is: 1,532.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.21 : 3,381.31 = 1,021.39 : x
  2. Step 2: Convert to fraction form
    2,254.21/3,381.31 = 1,021.39/x
  3. Step 3: Cross multiply
    2,254.21x = 3,381.31 × 1,021.39
  4. Step 4: Simplify right side
    2,254.21x = 3,453,636.22
  5. Step 5: Solve for x
    x = 3,453,636.22/2,254.21
  6. Step 6: Final answer
    x = 1,532.08

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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.