Home / 3,408.40-4,702.38-2,230.15

Finding the Fourth Proportional to 3,408.40, 4,702.38 and 2,230.15

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Solution

The fourth proportional to 3,408.40, 4,702.38 and 2,230.15 is: 3,076.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.40 : 4,702.38 = 2,230.15 : x
  2. Step 2: Convert to fraction form
    3,408.40/4,702.38 = 2,230.15/x
  3. Step 3: Cross multiply
    3,408.40x = 4,702.38 × 2,230.15
  4. Step 4: Simplify right side
    3,408.40x = 10,487,012.76
  5. Step 5: Solve for x
    x = 10,487,012.76/3,408.40
  6. Step 6: Final answer
    x = 3,076.81

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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.