Home / 6,118.70-9,172.56-2,220.38

Finding the Fourth Proportional to 6,118.70, 9,172.56 and 2,220.38

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Solution

The fourth proportional to 6,118.70, 9,172.56 and 2,220.38 is: 3,328.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,118.70 : 9,172.56 = 2,220.38 : x
  2. Step 2: Convert to fraction form
    6,118.70/9,172.56 = 2,220.38/x
  3. Step 3: Cross multiply
    6,118.70x = 9,172.56 × 2,220.38
  4. Step 4: Simplify right side
    6,118.70x = 20,366,568.77
  5. Step 5: Solve for x
    x = 20,366,568.77/6,118.70
  6. Step 6: Final answer
    x = 3,328.58

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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.