Home / 1,946.12-2,685.62-1,283.33

Finding the Fourth Proportional to 1,946.12, 2,685.62 and 1,283.33

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Solution

The fourth proportional to 1,946.12, 2,685.62 and 1,283.33 is: 1,770.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.12 : 2,685.62 = 1,283.33 : x
  2. Step 2: Convert to fraction form
    1,946.12/2,685.62 = 1,283.33/x
  3. Step 3: Cross multiply
    1,946.12x = 2,685.62 × 1,283.33
  4. Step 4: Simplify right side
    1,946.12x = 3,446,546.64
  5. Step 5: Solve for x
    x = 3,446,546.64/1,946.12
  6. Step 6: Final answer
    x = 1,770.99

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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.