Home / 3,356.40-5,034.60-1,408.08

Finding the Fourth Proportional to 3,356.40, 5,034.60 and 1,408.08

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Solution

The fourth proportional to 3,356.40, 5,034.60 and 1,408.08 is: 2,112.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,356.40 : 5,034.60 = 1,408.08 : x
  2. Step 2: Convert to fraction form
    3,356.40/5,034.60 = 1,408.08/x
  3. Step 3: Cross multiply
    3,356.40x = 5,034.60 × 1,408.08
  4. Step 4: Simplify right side
    3,356.40x = 7,089,119.57
  5. Step 5: Solve for x
    x = 7,089,119.57/3,356.40
  6. Step 6: Final answer
    x = 2,112.12

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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.