Home / 4,111.49-6,165.39-1,189.11

Finding the Fourth Proportional to 4,111.49, 6,165.39 and 1,189.11

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Solution

The fourth proportional to 4,111.49, 6,165.39 and 1,189.11 is: 1,783.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,111.49 : 6,165.39 = 1,189.11 : x
  2. Step 2: Convert to fraction form
    4,111.49/6,165.39 = 1,189.11/x
  3. Step 3: Cross multiply
    4,111.49x = 6,165.39 × 1,189.11
  4. Step 4: Simplify right side
    4,111.49x = 7,331,326.90
  5. Step 5: Solve for x
    x = 7,331,326.90/4,111.49
  6. Step 6: Final answer
    x = 1,783.13

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Double scale
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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.