Home / 1,984.59-2,739.42-1,396.53

Finding the Fourth Proportional to 1,984.59, 2,739.42 and 1,396.53

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Solution

The fourth proportional to 1,984.59, 2,739.42 and 1,396.53 is: 1,927.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.59 : 2,739.42 = 1,396.53 : x
  2. Step 2: Convert to fraction form
    1,984.59/2,739.42 = 1,396.53/x
  3. Step 3: Cross multiply
    1,984.59x = 2,739.42 × 1,396.53
  4. Step 4: Simplify right side
    1,984.59x = 3,825,682.21
  5. Step 5: Solve for x
    x = 3,825,682.21/1,984.59
  6. Step 6: Final answer
    x = 1,927.69

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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.