Home / 3,960.11-5,465.21-2,281.47

Finding the Fourth Proportional to 3,960.11, 5,465.21 and 2,281.47

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Solution

The fourth proportional to 3,960.11, 5,465.21 and 2,281.47 is: 3,148.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.11 : 5,465.21 = 2,281.47 : x
  2. Step 2: Convert to fraction form
    3,960.11/5,465.21 = 2,281.47/x
  3. Step 3: Cross multiply
    3,960.11x = 5,465.21 × 2,281.47
  4. Step 4: Simplify right side
    3,960.11x = 12,468,712.66
  5. Step 5: Solve for x
    x = 12,468,712.66/3,960.11
  6. Step 6: Final answer
    x = 3,148.58

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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.