Home / 5,638.68-8,450.46-3,172.50

Finding the Fourth Proportional to 5,638.68, 8,450.46 and 3,172.50

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Solution

The fourth proportional to 5,638.68, 8,450.46 and 3,172.50 is: 4,754.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.68 : 8,450.46 = 3,172.50 : x
  2. Step 2: Convert to fraction form
    5,638.68/8,450.46 = 3,172.50/x
  3. Step 3: Cross multiply
    5,638.68x = 8,450.46 × 3,172.50
  4. Step 4: Simplify right side
    5,638.68x = 26,809,084.35
  5. Step 5: Solve for x
    x = 26,809,084.35/5,638.68
  6. Step 6: Final answer
    x = 4,754.50

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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.