Home / 2,388.74-3,296.79-1,394.55

Finding the Fourth Proportional to 2,388.74, 3,296.79 and 1,394.55

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Solution

The fourth proportional to 2,388.74, 3,296.79 and 1,394.55 is: 1,924.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.74 : 3,296.79 = 1,394.55 : x
  2. Step 2: Convert to fraction form
    2,388.74/3,296.79 = 1,394.55/x
  3. Step 3: Cross multiply
    2,388.74x = 3,296.79 × 1,394.55
  4. Step 4: Simplify right side
    2,388.74x = 4,597,538.49
  5. Step 5: Solve for x
    x = 4,597,538.49/2,388.74
  6. Step 6: Final answer
    x = 1,924.67

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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.