Home / 1,949.90-2,690.96-1,110.68

Finding the Fourth Proportional to 1,949.90, 2,690.96 and 1,110.68

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Solution

The fourth proportional to 1,949.90, 2,690.96 and 1,110.68 is: 1,532.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.90 : 2,690.96 = 1,110.68 : x
  2. Step 2: Convert to fraction form
    1,949.90/2,690.96 = 1,110.68/x
  3. Step 3: Cross multiply
    1,949.90x = 2,690.96 × 1,110.68
  4. Step 4: Simplify right side
    1,949.90x = 2,988,795.45
  5. Step 5: Solve for x
    x = 2,988,795.45/1,949.90
  6. Step 6: Final answer
    x = 1,532.79

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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.