Home / 3,189-4,784.72-1,241.36

Finding the Fourth Proportional to 3,189, 4,784.72 and 1,241.36

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Solution

The fourth proportional to 3,189, 4,784.72 and 1,241.36 is: 1,862.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189 : 4,784.72 = 1,241.36 : x
  2. Step 2: Convert to fraction form
    3,189/4,784.72 = 1,241.36/x
  3. Step 3: Cross multiply
    3,189x = 4,784.72 × 1,241.36
  4. Step 4: Simplify right side
    3,189x = 5,939,560.02
  5. Step 5: Solve for x
    x = 5,939,560.02/3,189
  6. Step 6: Final answer
    x = 1,862.51

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1.5x scale

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.