Home / 2,186.35-3,017.18-1,191.65

Finding the Fourth Proportional to 2,186.35, 3,017.18 and 1,191.65

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Solution

The fourth proportional to 2,186.35, 3,017.18 and 1,191.65 is: 1,644.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.35 : 3,017.18 = 1,191.65 : x
  2. Step 2: Convert to fraction form
    2,186.35/3,017.18 = 1,191.65/x
  3. Step 3: Cross multiply
    2,186.35x = 3,017.18 × 1,191.65
  4. Step 4: Simplify right side
    2,186.35x = 3,595,416.59
  5. Step 5: Solve for x
    x = 3,595,416.59/2,186.35
  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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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.