Home / 2,428.60-3,636.42-2,137

Finding the Fourth Proportional to 2,428.60, 3,636.42 and 2,137

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Solution

The fourth proportional to 2,428.60, 3,636.42 and 2,137 is: 3,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428.60 : 3,636.42 = 2,137 : x
  2. Step 2: Convert to fraction form
    2,428.60/3,636.42 = 2,137/x
  3. Step 3: Cross multiply
    2,428.60x = 3,636.42 × 2,137
  4. Step 4: Simplify right side
    2,428.60x = 7,771,029.54
  5. Step 5: Solve for x
    x = 7,771,029.54/2,428.60
  6. Step 6: Final answer
    x = 3,199.80

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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.