Home / 1,946.81-2,921.97-1,320.59

Finding the Fourth Proportional to 1,946.81, 2,921.97 and 1,320.59

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Solution

The fourth proportional to 1,946.81, 2,921.97 and 1,320.59 is: 1,982.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.81 : 2,921.97 = 1,320.59 : x
  2. Step 2: Convert to fraction form
    1,946.81/2,921.97 = 1,320.59/x
  3. Step 3: Cross multiply
    1,946.81x = 2,921.97 × 1,320.59
  4. Step 4: Simplify right side
    1,946.81x = 3,858,724.36
  5. Step 5: Solve for x
    x = 3,858,724.36/1,946.81
  6. Step 6: Final answer
    x = 1,982.08

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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.