Home / 8,140.77-12,203.82-2,943

Finding the Fourth Proportional to 8,140.77, 12,203.82 and 2,943

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Solution

The fourth proportional to 8,140.77, 12,203.82 and 2,943 is: 4,411.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.77 : 12,203.82 = 2,943 : x
  2. Step 2: Convert to fraction form
    8,140.77/12,203.82 = 2,943/x
  3. Step 3: Cross multiply
    8,140.77x = 12,203.82 × 2,943
  4. Step 4: Simplify right side
    8,140.77x = 35,915,842.26
  5. Step 5: Solve for x
    x = 35,915,842.26/8,140.77
  6. Step 6: Final answer
    x = 4,411.85

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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.