Home / 3,431.14-4,735.21-1,938.52

Finding the Fourth Proportional to 3,431.14, 4,735.21 and 1,938.52

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Solution

The fourth proportional to 3,431.14, 4,735.21 and 1,938.52 is: 2,675.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.14 : 4,735.21 = 1,938.52 : x
  2. Step 2: Convert to fraction form
    3,431.14/4,735.21 = 1,938.52/x
  3. Step 3: Cross multiply
    3,431.14x = 4,735.21 × 1,938.52
  4. Step 4: Simplify right side
    3,431.14x = 9,179,277.36
  5. Step 5: Solve for x
    x = 9,179,277.36/3,431.14
  6. Step 6: Final answer
    x = 2,675.28

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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.