Home / 3,702.82-5,110.60-2,378.20

Finding the Fourth Proportional to 3,702.82, 5,110.60 and 2,378.20

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Solution

The fourth proportional to 3,702.82, 5,110.60 and 2,378.20 is: 3,282.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,702.82 : 5,110.60 = 2,378.20 : x
  2. Step 2: Convert to fraction form
    3,702.82/5,110.60 = 2,378.20/x
  3. Step 3: Cross multiply
    3,702.82x = 5,110.60 × 2,378.20
  4. Step 4: Simplify right side
    3,702.82x = 12,154,028.92
  5. Step 5: Solve for x
    x = 12,154,028.92/3,702.82
  6. Step 6: Final answer
    x = 3,282.37

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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.