Home / 5,406.75-8,110.89-2,118.06

Finding the Fourth Proportional to 5,406.75, 8,110.89 and 2,118.06

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Solution

The fourth proportional to 5,406.75, 8,110.89 and 2,118.06 is: 3,177.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.75 : 8,110.89 = 2,118.06 : x
  2. Step 2: Convert to fraction form
    5,406.75/8,110.89 = 2,118.06/x
  3. Step 3: Cross multiply
    5,406.75x = 8,110.89 × 2,118.06
  4. Step 4: Simplify right side
    5,406.75x = 17,179,351.67
  5. Step 5: Solve for x
    x = 17,179,351.67/5,406.75
  6. Step 6: Final answer
    x = 3,177.39

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1.5x scale

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.