Home / 3,515.40-5,270.00-2,998.72

Finding the Fourth Proportional to 3,515.40, 5,270.00 and 2,998.72

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Solution

The fourth proportional to 3,515.40, 5,270.00 and 2,998.72 is: 4,495.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.40 : 5,270.00 = 2,998.72 : x
  2. Step 2: Convert to fraction form
    3,515.40/5,270.00 = 2,998.72/x
  3. Step 3: Cross multiply
    3,515.40x = 5,270.00 × 2,998.72
  4. Step 4: Simplify right side
    3,515.40x = 15,803,245.99
  5. Step 5: Solve for x
    x = 15,803,245.99/3,515.40
  6. Step 6: Final answer
    x = 4,495.43

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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.