Home / 1,943.90-2,912.60-1,365.74

Finding the Fourth Proportional to 1,943.90, 2,912.60 and 1,365.74

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Solution

The fourth proportional to 1,943.90, 2,912.60 and 1,365.74 is: 2,046.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.90 : 2,912.60 = 1,365.74 : x
  2. Step 2: Convert to fraction form
    1,943.90/2,912.60 = 1,365.74/x
  3. Step 3: Cross multiply
    1,943.90x = 2,912.60 × 1,365.74
  4. Step 4: Simplify right side
    1,943.90x = 3,977,854.32
  5. Step 5: Solve for x
    x = 3,977,854.32/1,943.90
  6. Step 6: Final answer
    x = 2,046.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.