Home / 1,949.63-2,690.30-1,110.38

Finding the Fourth Proportional to 1,949.63, 2,690.30 and 1,110.38

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Solution

The fourth proportional to 1,949.63, 2,690.30 and 1,110.38 is: 1,532.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.63 : 2,690.30 = 1,110.38 : x
  2. Step 2: Convert to fraction form
    1,949.63/2,690.30 = 1,110.38/x
  3. Step 3: Cross multiply
    1,949.63x = 2,690.30 × 1,110.38
  4. Step 4: Simplify right side
    1,949.63x = 2,987,244.64
  5. Step 5: Solve for x
    x = 2,987,244.64/1,949.63
  6. Step 6: Final answer
    x = 1,532.21

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1.5x scale

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.