Home / 3,880.44-5,354.64-2,387.88

Finding the Fourth Proportional to 3,880.44, 5,354.64 and 2,387.88

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Solution

The fourth proportional to 3,880.44, 5,354.64 and 2,387.88 is: 3,295.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.44 : 5,354.64 = 2,387.88 : x
  2. Step 2: Convert to fraction form
    3,880.44/5,354.64 = 2,387.88/x
  3. Step 3: Cross multiply
    3,880.44x = 5,354.64 × 2,387.88
  4. Step 4: Simplify right side
    3,880.44x = 12,786,237.76
  5. Step 5: Solve for x
    x = 12,786,237.76/3,880.44
  6. Step 6: Final answer
    x = 3,295.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.