Home / 3,615.21-4,989.05-2,043.30

Finding the Fourth Proportional to 3,615.21, 4,989.05 and 2,043.30

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Solution

The fourth proportional to 3,615.21, 4,989.05 and 2,043.30 is: 2,819.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.21 : 4,989.05 = 2,043.30 : x
  2. Step 2: Convert to fraction form
    3,615.21/4,989.05 = 2,043.30/x
  3. Step 3: Cross multiply
    3,615.21x = 4,989.05 × 2,043.30
  4. Step 4: Simplify right side
    3,615.21x = 10,194,130.97
  5. Step 5: Solve for x
    x = 10,194,130.97/3,615.21
  6. Step 6: Final answer
    x = 2,819.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.