Home / 3,913.31-5,400.37-2,144.93

Finding the Fourth Proportional to 3,913.31, 5,400.37 and 2,144.93

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Solution

The fourth proportional to 3,913.31, 5,400.37 and 2,144.93 is: 2,960.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.31 : 5,400.37 = 2,144.93 : x
  2. Step 2: Convert to fraction form
    3,913.31/5,400.37 = 2,144.93/x
  3. Step 3: Cross multiply
    3,913.31x = 5,400.37 × 2,144.93
  4. Step 4: Simplify right side
    3,913.31x = 11,583,421.68
  5. Step 5: Solve for x
    x = 11,583,421.68/3,913.31
  6. Step 6: Final answer
    x = 2,960.00

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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.