Home / 3,619.13-5,428.71-1,022.09

Finding the Fourth Proportional to 3,619.13, 5,428.71 and 1,022.09

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Solution

The fourth proportional to 3,619.13, 5,428.71 and 1,022.09 is: 1,533.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.13 : 5,428.71 = 1,022.09 : x
  2. Step 2: Convert to fraction form
    3,619.13/5,428.71 = 1,022.09/x
  3. Step 3: Cross multiply
    3,619.13x = 5,428.71 × 1,022.09
  4. Step 4: Simplify right side
    3,619.13x = 5,548,603.06
  5. Step 5: Solve for x
    x = 5,548,603.06/3,619.13
  6. Step 6: Final answer
    x = 1,533.13

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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.