Home / 4,120.77-5,683.57-2,861.83

Finding the Fourth Proportional to 4,120.77, 5,683.57 and 2,861.83

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Solution

The fourth proportional to 4,120.77, 5,683.57 and 2,861.83 is: 3,947.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.77 : 5,683.57 = 2,861.83 : x
  2. Step 2: Convert to fraction form
    4,120.77/5,683.57 = 2,861.83/x
  3. Step 3: Cross multiply
    4,120.77x = 5,683.57 × 2,861.83
  4. Step 4: Simplify right side
    4,120.77x = 16,265,411.08
  5. Step 5: Solve for x
    x = 16,265,411.08/4,120.77
  6. Step 6: Final answer
    x = 3,947.17

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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.