Home / 3,199.14-4,415.13-1,783.05

Finding the Fourth Proportional to 3,199.14, 4,415.13 and 1,783.05

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Solution

The fourth proportional to 3,199.14, 4,415.13 and 1,783.05 is: 2,460.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,199.14 : 4,415.13 = 1,783.05 : x
  2. Step 2: Convert to fraction form
    3,199.14/4,415.13 = 1,783.05/x
  3. Step 3: Cross multiply
    3,199.14x = 4,415.13 × 1,783.05
  4. Step 4: Simplify right side
    3,199.14x = 7,872,397.55
  5. Step 5: Solve for x
    x = 7,872,397.55/3,199.14
  6. Step 6: Final answer
    x = 2,460.79

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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.