Home / 3,213.57-4,820.82-1,021.56

Finding the Fourth Proportional to 3,213.57, 4,820.82 and 1,021.56

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Solution

The fourth proportional to 3,213.57, 4,820.82 and 1,021.56 is: 1,532.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.57 : 4,820.82 = 1,021.56 : x
  2. Step 2: Convert to fraction form
    3,213.57/4,820.82 = 1,021.56/x
  3. Step 3: Cross multiply
    3,213.57x = 4,820.82 × 1,021.56
  4. Step 4: Simplify right side
    3,213.57x = 4,924,762.09
  5. Step 5: Solve for x
    x = 4,924,762.09/3,213.57
  6. Step 6: Final answer
    x = 1,532.49

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1.5x scale

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.