Home / 5,388.44-8,086.37-1,878.47

Finding the Fourth Proportional to 5,388.44, 8,086.37 and 1,878.47

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Solution

The fourth proportional to 5,388.44, 8,086.37 and 1,878.47 is: 2,819.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.44 : 8,086.37 = 1,878.47 : x
  2. Step 2: Convert to fraction form
    5,388.44/8,086.37 = 1,878.47/x
  3. Step 3: Cross multiply
    5,388.44x = 8,086.37 × 1,878.47
  4. Step 4: Simplify right side
    5,388.44x = 15,189,994.06
  5. Step 5: Solve for x
    x = 15,189,994.06/5,388.44
  6. Step 6: Final answer
    x = 2,819.00

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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.