Home / 2,183.46-3,012.08-1,385.48

Finding the Fourth Proportional to 2,183.46, 3,012.08 and 1,385.48

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Solution

The fourth proportional to 2,183.46, 3,012.08 and 1,385.48 is: 1,911.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.46 : 3,012.08 = 1,385.48 : x
  2. Step 2: Convert to fraction form
    2,183.46/3,012.08 = 1,385.48/x
  3. Step 3: Cross multiply
    2,183.46x = 3,012.08 × 1,385.48
  4. Step 4: Simplify right side
    2,183.46x = 4,173,176.60
  5. Step 5: Solve for x
    x = 4,173,176.60/2,183.46
  6. Step 6: Final answer
    x = 1,911.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.