Home / 2,186.39-3,017.21-1,191.66

Finding the Fourth Proportional to 2,186.39, 3,017.21 and 1,191.66

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Solution

The fourth proportional to 2,186.39, 3,017.21 and 1,191.66 is: 1,644.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.39 : 3,017.21 = 1,191.66 : x
  2. Step 2: Convert to fraction form
    2,186.39/3,017.21 = 1,191.66/x
  3. Step 3: Cross multiply
    2,186.39x = 3,017.21 × 1,191.66
  4. Step 4: Simplify right side
    2,186.39x = 3,595,495.76
  5. Step 5: Solve for x
    x = 3,595,495.76/2,186.39
  6. Step 6: Final answer
    x = 1,644.49

Related Problems

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Half scale
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Double scale
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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.