Home / 3,702.82-5,110.34-2,130.88

Finding the Fourth Proportional to 3,702.82, 5,110.34 and 2,130.88

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Solution

The fourth proportional to 3,702.82, 5,110.34 and 2,130.88 is: 2,940.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,702.82 : 5,110.34 = 2,130.88 : x
  2. Step 2: Convert to fraction form
    3,702.82/5,110.34 = 2,130.88/x
  3. Step 3: Cross multiply
    3,702.82x = 5,110.34 × 2,130.88
  4. Step 4: Simplify right side
    3,702.82x = 10,889,485.09
  5. Step 5: Solve for x
    x = 10,889,485.09/3,702.82
  6. Step 6: Final answer
    x = 2,940.87

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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.