Home / 2,622.29-3,618.64-1,427.28

Finding the Fourth Proportional to 2,622.29, 3,618.64 and 1,427.28

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Solution

The fourth proportional to 2,622.29, 3,618.64 and 1,427.28 is: 1,969.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.29 : 3,618.64 = 1,427.28 : x
  2. Step 2: Convert to fraction form
    2,622.29/3,618.64 = 1,427.28/x
  3. Step 3: Cross multiply
    2,622.29x = 3,618.64 × 1,427.28
  4. Step 4: Simplify right side
    2,622.29x = 5,164,792.68
  5. Step 5: Solve for x
    x = 5,164,792.68/2,622.29
  6. Step 6: Final answer
    x = 1,969.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.