Home / 3,412.45-5,116.85-1,219.99

Finding the Fourth Proportional to 3,412.45, 5,116.85 and 1,219.99

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Solution

The fourth proportional to 3,412.45, 5,116.85 and 1,219.99 is: 1,829.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.45 : 5,116.85 = 1,219.99 : x
  2. Step 2: Convert to fraction form
    3,412.45/5,116.85 = 1,219.99/x
  3. Step 3: Cross multiply
    3,412.45x = 5,116.85 × 1,219.99
  4. Step 4: Simplify right side
    3,412.45x = 6,242,480.25
  5. Step 5: Solve for x
    x = 6,242,480.25/3,412.45
  6. Step 6: Final answer
    x = 1,829.33

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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.