Home / 3,907.41-5,390.31-2,663.25

Finding the Fourth Proportional to 3,907.41, 5,390.31 and 2,663.25

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Solution

The fourth proportional to 3,907.41, 5,390.31 and 2,663.25 is: 3,673.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.41 : 5,390.31 = 2,663.25 : x
  2. Step 2: Convert to fraction form
    3,907.41/5,390.31 = 2,663.25/x
  3. Step 3: Cross multiply
    3,907.41x = 5,390.31 × 2,663.25
  4. Step 4: Simplify right side
    3,907.41x = 14,355,743.11
  5. Step 5: Solve for x
    x = 14,355,743.11/3,907.41
  6. Step 6: Final answer
    x = 3,673.98

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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.