Home / 3,199.59-4,415.25-1,783.20

Finding the Fourth Proportional to 3,199.59, 4,415.25 and 1,783.20

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Solution

The fourth proportional to 3,199.59, 4,415.25 and 1,783.20 is: 2,460.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,199.59 : 4,415.25 = 1,783.20 : x
  2. Step 2: Convert to fraction form
    3,199.59/4,415.25 = 1,783.20/x
  3. Step 3: Cross multiply
    3,199.59x = 4,415.25 × 1,783.20
  4. Step 4: Simplify right side
    3,199.59x = 7,873,273.80
  5. Step 5: Solve for x
    x = 7,873,273.80/3,199.59
  6. Step 6: Final answer
    x = 2,460.71

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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.