Home / 2,745.37-4,119.76-1,186.45

Finding the Fourth Proportional to 2,745.37, 4,119.76 and 1,186.45

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Solution

The fourth proportional to 2,745.37, 4,119.76 and 1,186.45 is: 1,780.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.37 : 4,119.76 = 1,186.45 : x
  2. Step 2: Convert to fraction form
    2,745.37/4,119.76 = 1,186.45/x
  3. Step 3: Cross multiply
    2,745.37x = 4,119.76 × 1,186.45
  4. Step 4: Simplify right side
    2,745.37x = 4,887,880.44
  5. Step 5: Solve for x
    x = 4,887,880.44/2,745.37
  6. Step 6: Final answer
    x = 1,780.41

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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.