Home / 1,896.96-2,617.78-1,057.74

Finding the Fourth Proportional to 1,896.96, 2,617.78 and 1,057.74

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Solution

The fourth proportional to 1,896.96, 2,617.78 and 1,057.74 is: 1,459.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.96 : 2,617.78 = 1,057.74 : x
  2. Step 2: Convert to fraction form
    1,896.96/2,617.78 = 1,057.74/x
  3. Step 3: Cross multiply
    1,896.96x = 2,617.78 × 1,057.74
  4. Step 4: Simplify right side
    1,896.96x = 2,768,930.62
  5. Step 5: Solve for x
    x = 2,768,930.62/1,896.96
  6. Step 6: Final answer
    x = 1,459.67

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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.