Home / 5,410.30-8,112.32-2,119.54

Finding the Fourth Proportional to 5,410.30, 8,112.32 and 2,119.54

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Solution

The fourth proportional to 5,410.30, 8,112.32 and 2,119.54 is: 3,178.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,410.30 : 8,112.32 = 2,119.54 : x
  2. Step 2: Convert to fraction form
    5,410.30/8,112.32 = 2,119.54/x
  3. Step 3: Cross multiply
    5,410.30x = 8,112.32 × 2,119.54
  4. Step 4: Simplify right side
    5,410.30x = 17,194,386.73
  5. Step 5: Solve for x
    x = 17,194,386.73/5,410.30
  6. Step 6: Final answer
    x = 3,178.08

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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.