Home / 5,261.33-7,260.71-2,871.42

Finding the Fourth Proportional to 5,261.33, 7,260.71 and 2,871.42

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Solution

The fourth proportional to 5,261.33, 7,260.71 and 2,871.42 is: 3,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.33 : 7,260.71 = 2,871.42 : x
  2. Step 2: Convert to fraction form
    5,261.33/7,260.71 = 2,871.42/x
  3. Step 3: Cross multiply
    5,261.33x = 7,260.71 × 2,871.42
  4. Step 4: Simplify right side
    5,261.33x = 20,848,540.73
  5. Step 5: Solve for x
    x = 20,848,540.73/5,261.33
  6. Step 6: Final answer
    x = 3,962.60

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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.