Home / 3,213.79-4,820.64-1,022.11

Finding the Fourth Proportional to 3,213.79, 4,820.64 and 1,022.11

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Solution

The fourth proportional to 3,213.79, 4,820.64 and 1,022.11 is: 1,533.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.79 : 4,820.64 = 1,022.11 : x
  2. Step 2: Convert to fraction form
    3,213.79/4,820.64 = 1,022.11/x
  3. Step 3: Cross multiply
    3,213.79x = 4,820.64 × 1,022.11
  4. Step 4: Simplify right side
    3,213.79x = 4,927,224.35
  5. Step 5: Solve for x
    x = 4,927,224.35/3,213.79
  6. Step 6: Final answer
    x = 1,533.15

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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.