Home / 3,212-4,818.98-2,276.76

Finding the Fourth Proportional to 3,212, 4,818.98 and 2,276.76

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Solution

The fourth proportional to 3,212, 4,818.98 and 2,276.76 is: 3,415.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212 : 4,818.98 = 2,276.76 : x
  2. Step 2: Convert to fraction form
    3,212/4,818.98 = 2,276.76/x
  3. Step 3: Cross multiply
    3,212x = 4,818.98 × 2,276.76
  4. Step 4: Simplify right side
    3,212x = 10,971,625.43
  5. Step 5: Solve for x
    x = 10,971,625.43/3,212
  6. Step 6: Final answer
    x = 3,415.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.