Home / 4,128.66-5,695.83-2,800.26

Finding the Fourth Proportional to 4,128.66, 5,695.83 and 2,800.26

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Solution

The fourth proportional to 4,128.66, 5,695.83 and 2,800.26 is: 3,863.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.66 : 5,695.83 = 2,800.26 : x
  2. Step 2: Convert to fraction form
    4,128.66/5,695.83 = 2,800.26/x
  3. Step 3: Cross multiply
    4,128.66x = 5,695.83 × 2,800.26
  4. Step 4: Simplify right side
    4,128.66x = 15,949,804.92
  5. Step 5: Solve for x
    x = 15,949,804.92/4,128.66
  6. Step 6: Final answer
    x = 3,863.19

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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.