Home / 3,490.25-4,817.82-2,311.70

Finding the Fourth Proportional to 3,490.25, 4,817.82 and 2,311.70

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Solution

The fourth proportional to 3,490.25, 4,817.82 and 2,311.70 is: 3,190.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.25 : 4,817.82 = 2,311.70 : x
  2. Step 2: Convert to fraction form
    3,490.25/4,817.82 = 2,311.70/x
  3. Step 3: Cross multiply
    3,490.25x = 4,817.82 × 2,311.70
  4. Step 4: Simplify right side
    3,490.25x = 11,137,330.40
  5. Step 5: Solve for x
    x = 11,137,330.40/3,490.25
  6. Step 6: Final answer
    x = 3,190.99

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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.