Home / 3,800.22-5,244.56-2,121.63

Finding the Fourth Proportional to 3,800.22, 5,244.56 and 2,121.63

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Solution

The fourth proportional to 3,800.22, 5,244.56 and 2,121.63 is: 2,927.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.22 : 5,244.56 = 2,121.63 : x
  2. Step 2: Convert to fraction form
    3,800.22/5,244.56 = 2,121.63/x
  3. Step 3: Cross multiply
    3,800.22x = 5,244.56 × 2,121.63
  4. Step 4: Simplify right side
    3,800.22x = 11,127,015.83
  5. Step 5: Solve for x
    x = 11,127,015.83/3,800.22
  6. Step 6: Final answer
    x = 2,927.99

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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.