Home / 3,897.60-5,375.87-2,404.98

Finding the Fourth Proportional to 3,897.60, 5,375.87 and 2,404.98

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Solution

The fourth proportional to 3,897.60, 5,375.87 and 2,404.98 is: 3,317.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897.60 : 5,375.87 = 2,404.98 : x
  2. Step 2: Convert to fraction form
    3,897.60/5,375.87 = 2,404.98/x
  3. Step 3: Cross multiply
    3,897.60x = 5,375.87 × 2,404.98
  4. Step 4: Simplify right side
    3,897.60x = 12,928,847.81
  5. Step 5: Solve for x
    x = 12,928,847.81/3,897.60
  6. Step 6: Final answer
    x = 3,317.13

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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.