Home / 1,856.62-2,771.38-1,719.58

Finding the Fourth Proportional to 1,856.62, 2,771.38 and 1,719.58

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Solution

The fourth proportional to 1,856.62, 2,771.38 and 1,719.58 is: 2,566.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.62 : 2,771.38 = 1,719.58 : x
  2. Step 2: Convert to fraction form
    1,856.62/2,771.38 = 1,719.58/x
  3. Step 3: Cross multiply
    1,856.62x = 2,771.38 × 1,719.58
  4. Step 4: Simplify right side
    1,856.62x = 4,765,609.62
  5. Step 5: Solve for x
    x = 4,765,609.62/1,856.62
  6. Step 6: Final answer
    x = 2,566.82

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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.