Home / 5,450.23-8,168.17-2,161.53

Finding the Fourth Proportional to 5,450.23, 8,168.17 and 2,161.53

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Solution

The fourth proportional to 5,450.23, 8,168.17 and 2,161.53 is: 3,239.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.23 : 8,168.17 = 2,161.53 : x
  2. Step 2: Convert to fraction form
    5,450.23/8,168.17 = 2,161.53/x
  3. Step 3: Cross multiply
    5,450.23x = 8,168.17 × 2,161.53
  4. Step 4: Simplify right side
    5,450.23x = 17,655,744.50
  5. Step 5: Solve for x
    x = 17,655,744.50/5,450.23
  6. Step 6: Final answer
    x = 3,239.45

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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.