Home / 2,636.08-3,956.48-1,338.48

Finding the Fourth Proportional to 2,636.08, 3,956.48 and 1,338.48

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Solution

The fourth proportional to 2,636.08, 3,956.48 and 1,338.48 is: 2,008.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.08 : 3,956.48 = 1,338.48 : x
  2. Step 2: Convert to fraction form
    2,636.08/3,956.48 = 1,338.48/x
  3. Step 3: Cross multiply
    2,636.08x = 3,956.48 × 1,338.48
  4. Step 4: Simplify right side
    2,636.08x = 5,295,669.35
  5. Step 5: Solve for x
    x = 5,295,669.35/2,636.08
  6. Step 6: Final answer
    x = 2,008.92

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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.