Home / 3,271.21-4,513.79-2,385.47

Finding the Fourth Proportional to 3,271.21, 4,513.79 and 2,385.47

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Solution

The fourth proportional to 3,271.21, 4,513.79 and 2,385.47 is: 3,291.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.21 : 4,513.79 = 2,385.47 : x
  2. Step 2: Convert to fraction form
    3,271.21/4,513.79 = 2,385.47/x
  3. Step 3: Cross multiply
    3,271.21x = 4,513.79 × 2,385.47
  4. Step 4: Simplify right side
    3,271.21x = 10,767,527.88
  5. Step 5: Solve for x
    x = 10,767,527.88/3,271.21
  6. Step 6: Final answer
    x = 3,291.61

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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.