Home / 3,861.61-5,328.93-2,183.01

Finding the Fourth Proportional to 3,861.61, 5,328.93 and 2,183.01

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Solution

The fourth proportional to 3,861.61, 5,328.93 and 2,183.01 is: 3,012.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.61 : 5,328.93 = 2,183.01 : x
  2. Step 2: Convert to fraction form
    3,861.61/5,328.93 = 2,183.01/x
  3. Step 3: Cross multiply
    3,861.61x = 5,328.93 × 2,183.01
  4. Step 4: Simplify right side
    3,861.61x = 11,633,107.48
  5. Step 5: Solve for x
    x = 11,633,107.48/3,861.61
  6. Step 6: Final answer
    x = 3,012.50

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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.