Home / 1,973.38-2,722.41-1,226.80

Finding the Fourth Proportional to 1,973.38, 2,722.41 and 1,226.80

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Solution

The fourth proportional to 1,973.38, 2,722.41 and 1,226.80 is: 1,692.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.38 : 2,722.41 = 1,226.80 : x
  2. Step 2: Convert to fraction form
    1,973.38/2,722.41 = 1,226.80/x
  3. Step 3: Cross multiply
    1,973.38x = 2,722.41 × 1,226.80
  4. Step 4: Simplify right side
    1,973.38x = 3,339,852.59
  5. Step 5: Solve for x
    x = 3,339,852.59/1,973.38
  6. Step 6: Final answer
    x = 1,692.45

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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.