Home / 3,909.07-5,858.12-2,808.28

Finding the Fourth Proportional to 3,909.07, 5,858.12 and 2,808.28

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Solution

The fourth proportional to 3,909.07, 5,858.12 and 2,808.28 is: 4,208.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.07 : 5,858.12 = 2,808.28 : x
  2. Step 2: Convert to fraction form
    3,909.07/5,858.12 = 2,808.28/x
  3. Step 3: Cross multiply
    3,909.07x = 5,858.12 × 2,808.28
  4. Step 4: Simplify right side
    3,909.07x = 16,451,255.58
  5. Step 5: Solve for x
    x = 16,451,255.58/3,909.07
  6. Step 6: Final answer
    x = 4,208.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.