Home / 3,819.12-5,267.66-3,287.08

Finding the Fourth Proportional to 3,819.12, 5,267.66 and 3,287.08

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Solution

The fourth proportional to 3,819.12, 5,267.66 and 3,287.08 is: 4,533.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.12 : 5,267.66 = 3,287.08 : x
  2. Step 2: Convert to fraction form
    3,819.12/5,267.66 = 3,287.08/x
  3. Step 3: Cross multiply
    3,819.12x = 5,267.66 × 3,287.08
  4. Step 4: Simplify right side
    3,819.12x = 17,315,219.83
  5. Step 5: Solve for x
    x = 17,315,219.83/3,819.12
  6. Step 6: Final answer
    x = 4,533.82

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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.