Home / 3,431.07-4,735.56-1,939.01

Finding the Fourth Proportional to 3,431.07, 4,735.56 and 1,939.01

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Solution

The fourth proportional to 3,431.07, 4,735.56 and 1,939.01 is: 2,676.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.07 : 4,735.56 = 1,939.01 : x
  2. Step 2: Convert to fraction form
    3,431.07/4,735.56 = 1,939.01/x
  3. Step 3: Cross multiply
    3,431.07x = 4,735.56 × 1,939.01
  4. Step 4: Simplify right side
    3,431.07x = 9,182,274.52
  5. Step 5: Solve for x
    x = 9,182,274.52/3,431.07
  6. Step 6: Final answer
    x = 2,676.21

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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.