Home / 5,438.41-8,160.75-2,939.61

Finding the Fourth Proportional to 5,438.41, 8,160.75 and 2,939.61

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Solution

The fourth proportional to 5,438.41, 8,160.75 and 2,939.61 is: 4,411.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.41 : 8,160.75 = 2,939.61 : x
  2. Step 2: Convert to fraction form
    5,438.41/8,160.75 = 2,939.61/x
  3. Step 3: Cross multiply
    5,438.41x = 8,160.75 × 2,939.61
  4. Step 4: Simplify right side
    5,438.41x = 23,989,422.31
  5. Step 5: Solve for x
    x = 23,989,422.31/5,438.41
  6. Step 6: Final answer
    x = 4,411.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.