Home / 8,190.49-12,285.43-2,643.41

Finding the Fourth Proportional to 8,190.49, 12,285.43 and 2,643.41

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Solution

The fourth proportional to 8,190.49, 12,285.43 and 2,643.41 is: 3,965.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.49 : 12,285.43 = 2,643.41 : x
  2. Step 2: Convert to fraction form
    8,190.49/12,285.43 = 2,643.41/x
  3. Step 3: Cross multiply
    8,190.49x = 12,285.43 × 2,643.41
  4. Step 4: Simplify right side
    8,190.49x = 32,475,428.52
  5. Step 5: Solve for x
    x = 32,475,428.52/8,190.49
  6. Step 6: Final answer
    x = 3,965.02

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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.