Home / 3,813.52-5,261.75-2,321.42

Finding the Fourth Proportional to 3,813.52, 5,261.75 and 2,321.42

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Solution

The fourth proportional to 3,813.52, 5,261.75 and 2,321.42 is: 3,203.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.52 : 5,261.75 = 2,321.42 : x
  2. Step 2: Convert to fraction form
    3,813.52/5,261.75 = 2,321.42/x
  3. Step 3: Cross multiply
    3,813.52x = 5,261.75 × 2,321.42
  4. Step 4: Simplify right side
    3,813.52x = 12,214,731.69
  5. Step 5: Solve for x
    x = 12,214,731.69/3,813.52
  6. Step 6: Final answer
    x = 3,203.01

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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.