Home / 5,813.08-8,028.60-3,921.37

Finding the Fourth Proportional to 5,813.08, 8,028.60 and 3,921.37

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Solution

The fourth proportional to 5,813.08, 8,028.60 and 3,921.37 is: 5,415.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,813.08 : 8,028.60 = 3,921.37 : x
  2. Step 2: Convert to fraction form
    5,813.08/8,028.60 = 3,921.37/x
  3. Step 3: Cross multiply
    5,813.08x = 8,028.60 × 3,921.37
  4. Step 4: Simplify right side
    5,813.08x = 31,483,111.18
  5. Step 5: Solve for x
    x = 31,483,111.18/5,813.08
  6. Step 6: Final answer
    x = 5,415.91

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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.