Home / 5,450.90-8,178.39-2,166.29

Finding the Fourth Proportional to 5,450.90, 8,178.39 and 2,166.29

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Solution

The fourth proportional to 5,450.90, 8,178.39 and 2,166.29 is: 3,250.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.90 : 8,178.39 = 2,166.29 : x
  2. Step 2: Convert to fraction form
    5,450.90/8,178.39 = 2,166.29/x
  3. Step 3: Cross multiply
    5,450.90x = 8,178.39 × 2,166.29
  4. Step 4: Simplify right side
    5,450.90x = 17,716,806.35
  5. Step 5: Solve for x
    x = 17,716,806.35/5,450.90
  6. Step 6: Final answer
    x = 3,250.26

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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.