Home / 3,960.79-5,466.47-2,281.88

Finding the Fourth Proportional to 3,960.79, 5,466.47 and 2,281.88

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Solution

The fourth proportional to 3,960.79, 5,466.47 and 2,281.88 is: 3,149.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.79 : 5,466.47 = 2,281.88 : x
  2. Step 2: Convert to fraction form
    3,960.79/5,466.47 = 2,281.88/x
  3. Step 3: Cross multiply
    3,960.79x = 5,466.47 × 2,281.88
  4. Step 4: Simplify right side
    3,960.79x = 12,473,828.56
  5. Step 5: Solve for x
    x = 12,473,828.56/3,960.79
  6. Step 6: Final answer
    x = 3,149.33

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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.