Home / 2,936.85-4,405.29-745.57

Finding the Fourth Proportional to 2,936.85, 4,405.29 and 745.57

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Solution

The fourth proportional to 2,936.85, 4,405.29 and 745.57 is: 1,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.85 : 4,405.29 = 745.57 : x
  2. Step 2: Convert to fraction form
    2,936.85/4,405.29 = 745.57/x
  3. Step 3: Cross multiply
    2,936.85x = 4,405.29 × 745.57
  4. Step 4: Simplify right side
    2,936.85x = 3,284,452.07
  5. Step 5: Solve for x
    x = 3,284,452.07/2,936.85
  6. Step 6: Final answer
    x = 1,118.36

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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.