Home / 3,431.93-4,736.36-2,871.41

Finding the Fourth Proportional to 3,431.93, 4,736.36 and 2,871.41

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Solution

The fourth proportional to 3,431.93, 4,736.36 and 2,871.41 is: 3,962.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.93 : 4,736.36 = 2,871.41 : x
  2. Step 2: Convert to fraction form
    3,431.93/4,736.36 = 2,871.41/x
  3. Step 3: Cross multiply
    3,431.93x = 4,736.36 × 2,871.41
  4. Step 4: Simplify right side
    3,431.93x = 13,600,031.47
  5. Step 5: Solve for x
    x = 13,600,031.47/3,431.93
  6. Step 6: Final answer
    x = 3,962.79

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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.