Home / 3,431.36-4,735.53-1,939.41

Finding the Fourth Proportional to 3,431.36, 4,735.53 and 1,939.41

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Solution

The fourth proportional to 3,431.36, 4,735.53 and 1,939.41 is: 2,676.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.36 : 4,735.53 = 1,939.41 : x
  2. Step 2: Convert to fraction form
    3,431.36/4,735.53 = 1,939.41/x
  3. Step 3: Cross multiply
    3,431.36x = 4,735.53 × 1,939.41
  4. Step 4: Simplify right side
    3,431.36x = 9,184,134.24
  5. Step 5: Solve for x
    x = 9,184,134.24/3,431.36
  6. Step 6: Final answer
    x = 2,676.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.