Home / 4,111.11-6,165.86-1,189.71

Finding the Fourth Proportional to 4,111.11, 6,165.86 and 1,189.71

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Solution

The fourth proportional to 4,111.11, 6,165.86 and 1,189.71 is: 1,784.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,111.11 : 6,165.86 = 1,189.71 : x
  2. Step 2: Convert to fraction form
    4,111.11/6,165.86 = 1,189.71/x
  3. Step 3: Cross multiply
    4,111.11x = 6,165.86 × 1,189.71
  4. Step 4: Simplify right side
    4,111.11x = 7,335,579.35
  5. Step 5: Solve for x
    x = 7,335,579.35/4,111.11
  6. Step 6: Final answer
    x = 1,784.33

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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.