Home / 1,974.32-2,722.99-1,227.84

Finding the Fourth Proportional to 1,974.32, 2,722.99 and 1,227.84

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Solution

The fourth proportional to 1,974.32, 2,722.99 and 1,227.84 is: 1,693.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974.32 : 2,722.99 = 1,227.84 : x
  2. Step 2: Convert to fraction form
    1,974.32/2,722.99 = 1,227.84/x
  3. Step 3: Cross multiply
    1,974.32x = 2,722.99 × 1,227.84
  4. Step 4: Simplify right side
    1,974.32x = 3,343,396.04
  5. Step 5: Solve for x
    x = 3,343,396.04/1,974.32
  6. Step 6: Final answer
    x = 1,693.44

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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.