Home / 8,280.45-12,421.91-2,734.38

Finding the Fourth Proportional to 8,280.45, 12,421.91 and 2,734.38

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Solution

The fourth proportional to 8,280.45, 12,421.91 and 2,734.38 is: 4,101.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.45 : 12,421.91 = 2,734.38 : x
  2. Step 2: Convert to fraction form
    8,280.45/12,421.91 = 2,734.38/x
  3. Step 3: Cross multiply
    8,280.45x = 12,421.91 × 2,734.38
  4. Step 4: Simplify right side
    8,280.45x = 33,966,208.59
  5. Step 5: Solve for x
    x = 33,966,208.59/8,280.45
  6. Step 6: Final answer
    x = 4,101.98

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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.