Home / 3,313.62-4,971.30-1,122.03

Finding the Fourth Proportional to 3,313.62, 4,971.30 and 1,122.03

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Solution

The fourth proportional to 3,313.62, 4,971.30 and 1,122.03 is: 1,683.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.62 : 4,971.30 = 1,122.03 : x
  2. Step 2: Convert to fraction form
    3,313.62/4,971.30 = 1,122.03/x
  3. Step 3: Cross multiply
    3,313.62x = 4,971.30 × 1,122.03
  4. Step 4: Simplify right side
    3,313.62x = 5,577,947.74
  5. Step 5: Solve for x
    x = 5,577,947.74/3,313.62
  6. Step 6: Final answer
    x = 1,683.34

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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.