Home / 2,219.69-3,333.32-2,126.81

Finding the Fourth Proportional to 2,219.69, 3,333.32 and 2,126.81

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Solution

The fourth proportional to 2,219.69, 3,333.32 and 2,126.81 is: 3,193.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.69 : 3,333.32 = 2,126.81 : x
  2. Step 2: Convert to fraction form
    2,219.69/3,333.32 = 2,126.81/x
  3. Step 3: Cross multiply
    2,219.69x = 3,333.32 × 2,126.81
  4. Step 4: Simplify right side
    2,219.69x = 7,089,343.98
  5. Step 5: Solve for x
    x = 7,089,343.98/2,219.69
  6. Step 6: Final answer
    x = 3,193.84

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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.