Home / 2,219.14-3,330.78-1,180.36

Finding the Fourth Proportional to 2,219.14, 3,330.78 and 1,180.36

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Solution

The fourth proportional to 2,219.14, 3,330.78 and 1,180.36 is: 1,771.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.14 : 3,330.78 = 1,180.36 : x
  2. Step 2: Convert to fraction form
    2,219.14/3,330.78 = 1,180.36/x
  3. Step 3: Cross multiply
    2,219.14x = 3,330.78 × 1,180.36
  4. Step 4: Simplify right side
    2,219.14x = 3,931,519.48
  5. Step 5: Solve for x
    x = 3,931,519.48/2,219.14
  6. Step 6: Final answer
    x = 1,771.64

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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.