Home / 8,280.84-12,420-2,733.96

Finding the Fourth Proportional to 8,280.84, 12,420 and 2,733.96

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Solution

The fourth proportional to 8,280.84, 12,420 and 2,733.96 is: 4,100.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.84 : 12,420 = 2,733.96 : x
  2. Step 2: Convert to fraction form
    8,280.84/12,420 = 2,733.96/x
  3. Step 3: Cross multiply
    8,280.84x = 12,420 × 2,733.96
  4. Step 4: Simplify right side
    8,280.84x = 33,955,783.20
  5. Step 5: Solve for x
    x = 33,955,783.20/8,280.84
  6. Step 6: Final answer
    x = 4,100.52

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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.