Home / 2,745.30-4,119.26-1,284.24

Finding the Fourth Proportional to 2,745.30, 4,119.26 and 1,284.24

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Solution

The fourth proportional to 2,745.30, 4,119.26 and 1,284.24 is: 1,926.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.30 : 4,119.26 = 1,284.24 : x
  2. Step 2: Convert to fraction form
    2,745.30/4,119.26 = 1,284.24/x
  3. Step 3: Cross multiply
    2,745.30x = 4,119.26 × 1,284.24
  4. Step 4: Simplify right side
    2,745.30x = 5,290,118.46
  5. Step 5: Solve for x
    x = 5,290,118.46/2,745.30
  6. Step 6: Final answer
    x = 1,926.97

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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.