Home / 3,453.03-5,180.46-1,988.96

Finding the Fourth Proportional to 3,453.03, 5,180.46 and 1,988.96

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Solution

The fourth proportional to 3,453.03, 5,180.46 and 1,988.96 is: 2,983.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.03 : 5,180.46 = 1,988.96 : x
  2. Step 2: Convert to fraction form
    3,453.03/5,180.46 = 1,988.96/x
  3. Step 3: Cross multiply
    3,453.03x = 5,180.46 × 1,988.96
  4. Step 4: Simplify right side
    3,453.03x = 10,303,727.72
  5. Step 5: Solve for x
    x = 10,303,727.72/3,453.03
  6. Step 6: Final answer
    x = 2,983.97

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1.5x scale

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.