Home / 3,618.42-4,992.84-2,126.22

Finding the Fourth Proportional to 3,618.42, 4,992.84 and 2,126.22

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Solution

The fourth proportional to 3,618.42, 4,992.84 and 2,126.22 is: 2,933.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.42 : 4,992.84 = 2,126.22 : x
  2. Step 2: Convert to fraction form
    3,618.42/4,992.84 = 2,126.22/x
  3. Step 3: Cross multiply
    3,618.42x = 4,992.84 × 2,126.22
  4. Step 4: Simplify right side
    3,618.42x = 10,615,876.26
  5. Step 5: Solve for x
    x = 10,615,876.26/3,618.42
  6. Step 6: Final answer
    x = 2,933.84

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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.