Home / 3,493.21-4,820.67-1,921.33

Finding the Fourth Proportional to 3,493.21, 4,820.67 and 1,921.33

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Solution

The fourth proportional to 3,493.21, 4,820.67 and 1,921.33 is: 2,651.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.21 : 4,820.67 = 1,921.33 : x
  2. Step 2: Convert to fraction form
    3,493.21/4,820.67 = 1,921.33/x
  3. Step 3: Cross multiply
    3,493.21x = 4,820.67 × 1,921.33
  4. Step 4: Simplify right side
    3,493.21x = 9,262,097.89
  5. Step 5: Solve for x
    x = 9,262,097.89/3,493.21
  6. Step 6: Final answer
    x = 2,651.46

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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.