Home / 3,453.90-5,176.69-1,990.02

Finding the Fourth Proportional to 3,453.90, 5,176.69 and 1,990.02

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Solution

The fourth proportional to 3,453.90, 5,176.69 and 1,990.02 is: 2,982.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.90 : 5,176.69 = 1,990.02 : x
  2. Step 2: Convert to fraction form
    3,453.90/5,176.69 = 1,990.02/x
  3. Step 3: Cross multiply
    3,453.90x = 5,176.69 × 1,990.02
  4. Step 4: Simplify right side
    3,453.90x = 10,301,716.63
  5. Step 5: Solve for x
    x = 10,301,716.63/3,453.90
  6. Step 6: Final answer
    x = 2,982.63

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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.