Home / 3,899,503-5,381,213.52-2,157,127.03

Finding the Fourth Proportional to 3,899,503, 5,381,213.52 and 2,157,127.03

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Solution

The fourth proportional to 3,899,503, 5,381,213.52 and 2,157,127.03 is: 2,976,779.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899,503 : 5,381,213.52 = 2,157,127.03 : x
  2. Step 2: Convert to fraction form
    3,899,503/5,381,213.52 = 2,157,127.03/x
  3. Step 3: Cross multiply
    3,899,503x = 5,381,213.52 × 2,157,127.03
  4. Step 4: Simplify right side
    3,899,503x = 11,607,961,138,193.44
  5. Step 5: Solve for x
    x = 11,607,961,138,193.44/3,899,503
  6. Step 6: Final answer
    x = 2,976,779.64

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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.