Home / 1,922.28-2,651.58-1,224.06

Finding the Fourth Proportional to 1,922.28, 2,651.58 and 1,224.06

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Solution

The fourth proportional to 1,922.28, 2,651.58 and 1,224.06 is: 1,688.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.28 : 2,651.58 = 1,224.06 : x
  2. Step 2: Convert to fraction form
    1,922.28/2,651.58 = 1,224.06/x
  3. Step 3: Cross multiply
    1,922.28x = 2,651.58 × 1,224.06
  4. Step 4: Simplify right side
    1,922.28x = 3,245,693.01
  5. Step 5: Solve for x
    x = 3,245,693.01/1,922.28
  6. Step 6: Final answer
    x = 1,688.46

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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.