Home / 1,610.91-2,221.09-1,168.65

Finding the Fourth Proportional to 1,610.91, 2,221.09 and 1,168.65

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Solution

The fourth proportional to 1,610.91, 2,221.09 and 1,168.65 is: 1,611.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.91 : 2,221.09 = 1,168.65 : x
  2. Step 2: Convert to fraction form
    1,610.91/2,221.09 = 1,168.65/x
  3. Step 3: Cross multiply
    1,610.91x = 2,221.09 × 1,168.65
  4. Step 4: Simplify right side
    1,610.91x = 2,595,673.91
  5. Step 5: Solve for x
    x = 2,595,673.91/1,610.91
  6. Step 6: Final answer
    x = 1,611.31

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,611.91, 2,222.47 and 1,169.65
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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.