Home / 3,929.04-5,422.74-2,250.54

Finding the Fourth Proportional to 3,929.04, 5,422.74 and 2,250.54

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Solution

The fourth proportional to 3,929.04, 5,422.74 and 2,250.54 is: 3,106.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.04 : 5,422.74 = 2,250.54 : x
  2. Step 2: Convert to fraction form
    3,929.04/5,422.74 = 2,250.54/x
  3. Step 3: Cross multiply
    3,929.04x = 5,422.74 × 2,250.54
  4. Step 4: Simplify right side
    3,929.04x = 12,204,093.28
  5. Step 5: Solve for x
    x = 12,204,093.28/3,929.04
  6. Step 6: Final answer
    x = 3,106.13

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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.