Home / 5,261.69-7,261.17-2,871.64

Finding the Fourth Proportional to 5,261.69, 7,261.17 and 2,871.64

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Solution

The fourth proportional to 5,261.69, 7,261.17 and 2,871.64 is: 3,962.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.69 : 7,261.17 = 2,871.64 : x
  2. Step 2: Convert to fraction form
    5,261.69/7,261.17 = 2,871.64/x
  3. Step 3: Cross multiply
    5,261.69x = 7,261.17 × 2,871.64
  4. Step 4: Simplify right side
    5,261.69x = 20,851,466.22
  5. Step 5: Solve for x
    x = 20,851,466.22/5,261.69
  6. Step 6: Final answer
    x = 3,962.88

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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.