Home / 3,618.47-4,991.74-2,556.42

Finding the Fourth Proportional to 3,618.47, 4,991.74 and 2,556.42

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Solution

The fourth proportional to 3,618.47, 4,991.74 and 2,556.42 is: 3,526.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.47 : 4,991.74 = 2,556.42 : x
  2. Step 2: Convert to fraction form
    3,618.47/4,991.74 = 2,556.42/x
  3. Step 3: Cross multiply
    3,618.47x = 4,991.74 × 2,556.42
  4. Step 4: Simplify right side
    3,618.47x = 12,760,983.97
  5. Step 5: Solve for x
    x = 12,760,983.97/3,618.47
  6. Step 6: Final answer
    x = 3,526.62

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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.