Home / 3,183.40-4,393.14-1,857.16

Finding the Fourth Proportional to 3,183.40, 4,393.14 and 1,857.16

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Solution

The fourth proportional to 3,183.40, 4,393.14 and 1,857.16 is: 2,562.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.40 : 4,393.14 = 1,857.16 : x
  2. Step 2: Convert to fraction form
    3,183.40/4,393.14 = 1,857.16/x
  3. Step 3: Cross multiply
    3,183.40x = 4,393.14 × 1,857.16
  4. Step 4: Simplify right side
    3,183.40x = 8,158,763.88
  5. Step 5: Solve for x
    x = 8,158,763.88/3,183.40
  6. Step 6: Final answer
    x = 2,562.91

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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.