Home / 3,897.20-5,841.66-1,814.78

Finding the Fourth Proportional to 3,897.20, 5,841.66 and 1,814.78

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Solution

The fourth proportional to 3,897.20, 5,841.66 and 1,814.78 is: 2,720.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897.20 : 5,841.66 = 1,814.78 : x
  2. Step 2: Convert to fraction form
    3,897.20/5,841.66 = 1,814.78/x
  3. Step 3: Cross multiply
    3,897.20x = 5,841.66 × 1,814.78
  4. Step 4: Simplify right side
    3,897.20x = 10,601,327.73
  5. Step 5: Solve for x
    x = 10,601,327.73/3,897.20
  6. Step 6: Final answer
    x = 2,720.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.