Home / 1,611.08-2,223.39-1,163.19

Finding the Fourth Proportional to 1,611.08, 2,223.39 and 1,163.19

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Solution

The fourth proportional to 1,611.08, 2,223.39 and 1,163.19 is: 1,605.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.08 : 2,223.39 = 1,163.19 : x
  2. Step 2: Convert to fraction form
    1,611.08/2,223.39 = 1,163.19/x
  3. Step 3: Cross multiply
    1,611.08x = 2,223.39 × 1,163.19
  4. Step 4: Simplify right side
    1,611.08x = 2,586,225.01
  5. Step 5: Solve for x
    x = 2,586,225.01/1,611.08
  6. Step 6: Final answer
    x = 1,605.28

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Half scale
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Double scale
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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.