Home / 2,219.81-3,322.82-1,177.23

Finding the Fourth Proportional to 2,219.81, 3,322.82 and 1,177.23

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Solution

The fourth proportional to 2,219.81, 3,322.82 and 1,177.23 is: 1,762.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.81 : 3,322.82 = 1,177.23 : x
  2. Step 2: Convert to fraction form
    2,219.81/3,322.82 = 1,177.23/x
  3. Step 3: Cross multiply
    2,219.81x = 3,322.82 × 1,177.23
  4. Step 4: Simplify right side
    2,219.81x = 3,911,738.79
  5. Step 5: Solve for x
    x = 3,911,738.79/2,219.81
  6. Step 6: Final answer
    x = 1,762.20

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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.