Home / 4,128.08-5,698.68-2,801.84

Finding the Fourth Proportional to 4,128.08, 5,698.68 and 2,801.84

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Solution

The fourth proportional to 4,128.08, 5,698.68 and 2,801.84 is: 3,867.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.08 : 5,698.68 = 2,801.84 : x
  2. Step 2: Convert to fraction form
    4,128.08/5,698.68 = 2,801.84/x
  3. Step 3: Cross multiply
    4,128.08x = 5,698.68 × 2,801.84
  4. Step 4: Simplify right side
    4,128.08x = 15,966,789.57
  5. Step 5: Solve for x
    x = 15,966,789.57/4,128.08
  6. Step 6: Final answer
    x = 3,867.85

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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.