Home / 3,857.40-5,788.92-2,880.52

Finding the Fourth Proportional to 3,857.40, 5,788.92 and 2,880.52

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Solution

The fourth proportional to 3,857.40, 5,788.92 and 2,880.52 is: 4,322.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.40 : 5,788.92 = 2,880.52 : x
  2. Step 2: Convert to fraction form
    3,857.40/5,788.92 = 2,880.52/x
  3. Step 3: Cross multiply
    3,857.40x = 5,788.92 × 2,880.52
  4. Step 4: Simplify right side
    3,857.40x = 16,675,099.84
  5. Step 5: Solve for x
    x = 16,675,099.84/3,857.40
  6. Step 6: Final answer
    x = 4,322.89

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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.