Home / 1,972.65-2,722.04-1,226.34

Finding the Fourth Proportional to 1,972.65, 2,722.04 and 1,226.34

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Solution

The fourth proportional to 1,972.65, 2,722.04 and 1,226.34 is: 1,692.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.65 : 2,722.04 = 1,226.34 : x
  2. Step 2: Convert to fraction form
    1,972.65/2,722.04 = 1,226.34/x
  3. Step 3: Cross multiply
    1,972.65x = 2,722.04 × 1,226.34
  4. Step 4: Simplify right side
    1,972.65x = 3,338,145.00
  5. Step 5: Solve for x
    x = 3,338,145.00/1,972.65
  6. Step 6: Final answer
    x = 1,692.21

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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.