Home / 2,220.81-3,324.32-1,178.23

Finding the Fourth Proportional to 2,220.81, 3,324.32 and 1,178.23

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Solution

The fourth proportional to 2,220.81, 3,324.32 and 1,178.23 is: 1,763.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.81 : 3,324.32 = 1,178.23 : x
  2. Step 2: Convert to fraction form
    2,220.81/3,324.32 = 1,178.23/x
  3. Step 3: Cross multiply
    2,220.81x = 3,324.32 × 1,178.23
  4. Step 4: Simplify right side
    2,220.81x = 3,916,813.55
  5. Step 5: Solve for x
    x = 3,916,813.55/2,220.81
  6. Step 6: Final answer
    x = 1,763.69

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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.