Home / 4,128.80-5,696.88-2,616.83

Finding the Fourth Proportional to 4,128.80, 5,696.88 and 2,616.83

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Solution

The fourth proportional to 4,128.80, 5,696.88 and 2,616.83 is: 3,610.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.80 : 5,696.88 = 2,616.83 : x
  2. Step 2: Convert to fraction form
    4,128.80/5,696.88 = 2,616.83/x
  3. Step 3: Cross multiply
    4,128.80x = 5,696.88 × 2,616.83
  4. Step 4: Simplify right side
    4,128.80x = 14,907,766.49
  5. Step 5: Solve for x
    x = 14,907,766.49/4,128.80
  6. Step 6: Final answer
    x = 3,610.68

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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.