Home / 2,186.62-3,261.47-1,858.30

Finding the Fourth Proportional to 2,186.62, 3,261.47 and 1,858.30

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Solution

The fourth proportional to 2,186.62, 3,261.47 and 1,858.30 is: 2,771.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.62 : 3,261.47 = 1,858.30 : x
  2. Step 2: Convert to fraction form
    2,186.62/3,261.47 = 1,858.30/x
  3. Step 3: Cross multiply
    2,186.62x = 3,261.47 × 1,858.30
  4. Step 4: Simplify right side
    2,186.62x = 6,060,789.70
  5. Step 5: Solve for x
    x = 6,060,789.70/2,186.62
  6. Step 6: Final answer
    x = 2,771.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.