Home / 5,645.71-8,468.36-2,135.58

Finding the Fourth Proportional to 5,645.71, 8,468.36 and 2,135.58

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Solution

The fourth proportional to 5,645.71, 8,468.36 and 2,135.58 is: 3,203.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.71 : 8,468.36 = 2,135.58 : x
  2. Step 2: Convert to fraction form
    5,645.71/8,468.36 = 2,135.58/x
  3. Step 3: Cross multiply
    5,645.71x = 8,468.36 × 2,135.58
  4. Step 4: Simplify right side
    5,645.71x = 18,084,860.25
  5. Step 5: Solve for x
    x = 18,084,860.25/5,645.71
  6. Step 6: Final answer
    x = 3,203.29

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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.