Home / 5,398.75-8,101.77-2,111.43

Finding the Fourth Proportional to 5,398.75, 8,101.77 and 2,111.43

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Solution

The fourth proportional to 5,398.75, 8,101.77 and 2,111.43 is: 3,168.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.75 : 8,101.77 = 2,111.43 : x
  2. Step 2: Convert to fraction form
    5,398.75/8,101.77 = 2,111.43/x
  3. Step 3: Cross multiply
    5,398.75x = 8,101.77 × 2,111.43
  4. Step 4: Simplify right side
    5,398.75x = 17,106,320.23
  5. Step 5: Solve for x
    x = 17,106,320.23/5,398.75
  6. Step 6: Final answer
    x = 3,168.57

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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.