Home / 3,528.36-4,863.92-2,780.84

Finding the Fourth Proportional to 3,528.36, 4,863.92 and 2,780.84

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Solution

The fourth proportional to 3,528.36, 4,863.92 and 2,780.84 is: 3,833.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.36 : 4,863.92 = 2,780.84 : x
  2. Step 2: Convert to fraction form
    3,528.36/4,863.92 = 2,780.84/x
  3. Step 3: Cross multiply
    3,528.36x = 4,863.92 × 2,780.84
  4. Step 4: Simplify right side
    3,528.36x = 13,525,745.07
  5. Step 5: Solve for x
    x = 13,525,745.07/3,528.36
  6. Step 6: Final answer
    x = 3,833.44

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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.