Home / 5,259.89-7,894.43-2,141.60

Finding the Fourth Proportional to 5,259.89, 7,894.43 and 2,141.60

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Solution

The fourth proportional to 5,259.89, 7,894.43 and 2,141.60 is: 3,214.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.89 : 7,894.43 = 2,141.60 : x
  2. Step 2: Convert to fraction form
    5,259.89/7,894.43 = 2,141.60/x
  3. Step 3: Cross multiply
    5,259.89x = 7,894.43 × 2,141.60
  4. Step 4: Simplify right side
    5,259.89x = 16,906,661.11
  5. Step 5: Solve for x
    x = 16,906,661.11/5,259.89
  6. Step 6: Final answer
    x = 3,214.26

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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.