Home / 2,277.19-3,142.83-1,393.28

Finding the Fourth Proportional to 2,277.19, 3,142.83 and 1,393.28

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Solution

The fourth proportional to 2,277.19, 3,142.83 and 1,393.28 is: 1,922.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.19 : 3,142.83 = 1,393.28 : x
  2. Step 2: Convert to fraction form
    2,277.19/3,142.83 = 1,393.28/x
  3. Step 3: Cross multiply
    2,277.19x = 3,142.83 × 1,393.28
  4. Step 4: Simplify right side
    2,277.19x = 4,378,842.18
  5. Step 5: Solve for x
    x = 4,378,842.18/2,277.19
  6. Step 6: Final answer
    x = 1,922.91

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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.