Home / 2,190.42-3,023.50-1,394.28

Finding the Fourth Proportional to 2,190.42, 3,023.50 and 1,394.28

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Solution

The fourth proportional to 2,190.42, 3,023.50 and 1,394.28 is: 1,924.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.42 : 3,023.50 = 1,394.28 : x
  2. Step 2: Convert to fraction form
    2,190.42/3,023.50 = 1,394.28/x
  3. Step 3: Cross multiply
    2,190.42x = 3,023.50 × 1,394.28
  4. Step 4: Simplify right side
    2,190.42x = 4,215,605.58
  5. Step 5: Solve for x
    x = 4,215,605.58/2,190.42
  6. Step 6: Final answer
    x = 1,924.56

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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.