Home / 2,186.36-3,017.09-1,191.62

Finding the Fourth Proportional to 2,186.36, 3,017.09 and 1,191.62

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Solution

The fourth proportional to 2,186.36, 3,017.09 and 1,191.62 is: 1,644.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.36 : 3,017.09 = 1,191.62 : x
  2. Step 2: Convert to fraction form
    2,186.36/3,017.09 = 1,191.62/x
  3. Step 3: Cross multiply
    2,186.36x = 3,017.09 × 1,191.62
  4. Step 4: Simplify right side
    2,186.36x = 3,595,214.26
  5. Step 5: Solve for x
    x = 3,595,214.26/2,186.36
  6. Step 6: Final answer
    x = 1,644.38

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,187.36, 3,018.47 and 1,192.62
Similar ratio
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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.