Home / 3,702.50-5,108.97-2,109.35

Finding the Fourth Proportional to 3,702.50, 5,108.97 and 2,109.35

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Solution

The fourth proportional to 3,702.50, 5,108.97 and 2,109.35 is: 2,910.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,702.50 : 5,108.97 = 2,109.35 : x
  2. Step 2: Convert to fraction form
    3,702.50/5,108.97 = 2,109.35/x
  3. Step 3: Cross multiply
    3,702.50x = 5,108.97 × 2,109.35
  4. Step 4: Simplify right side
    3,702.50x = 10,776,580.32
  5. Step 5: Solve for x
    x = 10,776,580.32/3,702.50
  6. Step 6: Final answer
    x = 2,910.63

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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.