Home / 1,481.63-2,222.30-386.03

Finding the Fourth Proportional to 1,481.63, 2,222.30 and 386.03

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Solution

The fourth proportional to 1,481.63, 2,222.30 and 386.03 is: 579.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.63 : 2,222.30 = 386.03 : x
  2. Step 2: Convert to fraction form
    1,481.63/2,222.30 = 386.03/x
  3. Step 3: Cross multiply
    1,481.63x = 2,222.30 × 386.03
  4. Step 4: Simplify right side
    1,481.63x = 857,880.99
  5. Step 5: Solve for x
    x = 857,880.99/1,481.63
  6. Step 6: Final answer
    x = 579.01

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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.