Home / 3,910,531-5,396,520-2,279,903.80

Finding the Fourth Proportional to 3,910,531, 5,396,520 and 2,279,903.80

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Solution

The fourth proportional to 3,910,531, 5,396,520 and 2,279,903.80 is: 3,146,259.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910,531 : 5,396,520 = 2,279,903.80 : x
  2. Step 2: Convert to fraction form
    3,910,531/5,396,520 = 2,279,903.80/x
  3. Step 3: Cross multiply
    3,910,531x = 5,396,520 × 2,279,903.80
  4. Step 4: Simplify right side
    3,910,531x = 12,303,546,454,776.00
  5. Step 5: Solve for x
    x = 12,303,546,454,776.00/3,910,531
  6. Step 6: Final answer
    x = 3,146,259.79

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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.