Home / 3,460.03-5,190.87-1,120.04

Finding the Fourth Proportional to 3,460.03, 5,190.87 and 1,120.04

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Solution

The fourth proportional to 3,460.03, 5,190.87 and 1,120.04 is: 1,680.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,460.03 : 5,190.87 = 1,120.04 : x
  2. Step 2: Convert to fraction form
    3,460.03/5,190.87 = 1,120.04/x
  3. Step 3: Cross multiply
    3,460.03x = 5,190.87 × 1,120.04
  4. Step 4: Simplify right side
    3,460.03x = 5,813,958.62
  5. Step 5: Solve for x
    x = 5,813,958.62/3,460.03
  6. Step 6: Final answer
    x = 1,680.32

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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.