Home / 2,782.37-4,173.55-1,138.92

Finding the Fourth Proportional to 2,782.37, 4,173.55 and 1,138.92

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Solution

The fourth proportional to 2,782.37, 4,173.55 and 1,138.92 is: 1,708.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.37 : 4,173.55 = 1,138.92 : x
  2. Step 2: Convert to fraction form
    2,782.37/4,173.55 = 1,138.92/x
  3. Step 3: Cross multiply
    2,782.37x = 4,173.55 × 1,138.92
  4. Step 4: Simplify right side
    2,782.37x = 4,753,336.72
  5. Step 5: Solve for x
    x = 4,753,336.72/2,782.37
  6. Step 6: Final answer
    x = 1,708.38

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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.