Home / 3,394.08-5,087.97-1,315.44

Finding the Fourth Proportional to 3,394.08, 5,087.97 and 1,315.44

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Solution

The fourth proportional to 3,394.08, 5,087.97 and 1,315.44 is: 1,971.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394.08 : 5,087.97 = 1,315.44 : x
  2. Step 2: Convert to fraction form
    3,394.08/5,087.97 = 1,315.44/x
  3. Step 3: Cross multiply
    3,394.08x = 5,087.97 × 1,315.44
  4. Step 4: Simplify right side
    3,394.08x = 6,692,928.69
  5. Step 5: Solve for x
    x = 6,692,928.69/3,394.08
  6. Step 6: Final answer
    x = 1,971.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.