Home / 2,636.78-3,638.97-1,518.08

Finding the Fourth Proportional to 2,636.78, 3,638.97 and 1,518.08

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Solution

The fourth proportional to 2,636.78, 3,638.97 and 1,518.08 is: 2,095.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.78 : 3,638.97 = 1,518.08 : x
  2. Step 2: Convert to fraction form
    2,636.78/3,638.97 = 1,518.08/x
  3. Step 3: Cross multiply
    2,636.78x = 3,638.97 × 1,518.08
  4. Step 4: Simplify right side
    2,636.78x = 5,524,229.38
  5. Step 5: Solve for x
    x = 5,524,229.38/2,636.78
  6. Step 6: Final answer
    x = 2,095.07

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1.5x scale

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.