Home / 3,408.12-4,702.34-2,081.34

Finding the Fourth Proportional to 3,408.12, 4,702.34 and 2,081.34

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Solution

The fourth proportional to 3,408.12, 4,702.34 and 2,081.34 is: 2,871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.12 : 4,702.34 = 2,081.34 : x
  2. Step 2: Convert to fraction form
    3,408.12/4,702.34 = 2,081.34/x
  3. Step 3: Cross multiply
    3,408.12x = 4,702.34 × 2,081.34
  4. Step 4: Simplify right side
    3,408.12x = 9,787,168.34
  5. Step 5: Solve for x
    x = 9,787,168.34/3,408.12
  6. Step 6: Final answer
    x = 2,871.72

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1.5x scale

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.