Home / 4,078.40-5,631-2,753.96

Finding the Fourth Proportional to 4,078.40, 5,631 and 2,753.96

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Solution

The fourth proportional to 4,078.40, 5,631 and 2,753.96 is: 3,802.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.40 : 5,631 = 2,753.96 : x
  2. Step 2: Convert to fraction form
    4,078.40/5,631 = 2,753.96/x
  3. Step 3: Cross multiply
    4,078.40x = 5,631 × 2,753.96
  4. Step 4: Simplify right side
    4,078.40x = 15,507,548.76
  5. Step 5: Solve for x
    x = 15,507,548.76/4,078.40
  6. Step 6: Final answer
    x = 3,802.36

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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.