Home / 2,622.13-3,930.36-1,323.70

Finding the Fourth Proportional to 2,622.13, 3,930.36 and 1,323.70

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Solution

The fourth proportional to 2,622.13, 3,930.36 and 1,323.70 is: 1,984.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.13 : 3,930.36 = 1,323.70 : x
  2. Step 2: Convert to fraction form
    2,622.13/3,930.36 = 1,323.70/x
  3. Step 3: Cross multiply
    2,622.13x = 3,930.36 × 1,323.70
  4. Step 4: Simplify right side
    2,622.13x = 5,202,617.53
  5. Step 5: Solve for x
    x = 5,202,617.53/2,622.13
  6. Step 6: Final answer
    x = 1,984.12

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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.