Home / 2,220.63-3,328.58-1,179.99

Finding the Fourth Proportional to 2,220.63, 3,328.58 and 1,179.99

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Solution

The fourth proportional to 2,220.63, 3,328.58 and 1,179.99 is: 1,768.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.63 : 3,328.58 = 1,179.99 : x
  2. Step 2: Convert to fraction form
    2,220.63/3,328.58 = 1,179.99/x
  3. Step 3: Cross multiply
    2,220.63x = 3,328.58 × 1,179.99
  4. Step 4: Simplify right side
    2,220.63x = 3,927,685.21
  5. Step 5: Solve for x
    x = 3,927,685.21/2,220.63
  6. Step 6: Final answer
    x = 1,768.73

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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.