Home / 3,493.14-4,820.55-1,921.23

Finding the Fourth Proportional to 3,493.14, 4,820.55 and 1,921.23

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Solution

The fourth proportional to 3,493.14, 4,820.55 and 1,921.23 is: 2,651.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.14 : 4,820.55 = 1,921.23 : x
  2. Step 2: Convert to fraction form
    3,493.14/4,820.55 = 1,921.23/x
  3. Step 3: Cross multiply
    3,493.14x = 4,820.55 × 1,921.23
  4. Step 4: Simplify right side
    3,493.14x = 9,261,385.28
  5. Step 5: Solve for x
    x = 9,261,385.28/3,493.14
  6. Step 6: Final answer
    x = 2,651.31

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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.