Home / 1,946.99-2,919.36-1,331.44

Finding the Fourth Proportional to 1,946.99, 2,919.36 and 1,331.44

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Solution

The fourth proportional to 1,946.99, 2,919.36 and 1,331.44 is: 1,996.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.99 : 2,919.36 = 1,331.44 : x
  2. Step 2: Convert to fraction form
    1,946.99/2,919.36 = 1,331.44/x
  3. Step 3: Cross multiply
    1,946.99x = 2,919.36 × 1,331.44
  4. Step 4: Simplify right side
    1,946.99x = 3,886,954.34
  5. Step 5: Solve for x
    x = 3,886,954.34/1,946.99
  6. Step 6: Final answer
    x = 1,996.39

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1.5x scale

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.