Home / 1,965.90-2,943.99-1,141.68

Finding the Fourth Proportional to 1,965.90, 2,943.99 and 1,141.68

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Solution

The fourth proportional to 1,965.90, 2,943.99 and 1,141.68 is: 1,709.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965.90 : 2,943.99 = 1,141.68 : x
  2. Step 2: Convert to fraction form
    1,965.90/2,943.99 = 1,141.68/x
  3. Step 3: Cross multiply
    1,965.90x = 2,943.99 × 1,141.68
  4. Step 4: Simplify right side
    1,965.90x = 3,361,088.79
  5. Step 5: Solve for x
    x = 3,361,088.79/1,965.90
  6. Step 6: Final answer
    x = 1,709.69

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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.