Home / 5,171.79-7,135.83-3,047.16

Finding the Fourth Proportional to 5,171.79, 7,135.83 and 3,047.16

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Solution

The fourth proportional to 5,171.79, 7,135.83 and 3,047.16 is: 4,204.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.79 : 7,135.83 = 3,047.16 : x
  2. Step 2: Convert to fraction form
    5,171.79/7,135.83 = 3,047.16/x
  3. Step 3: Cross multiply
    5,171.79x = 7,135.83 × 3,047.16
  4. Step 4: Simplify right side
    5,171.79x = 21,744,042.50
  5. Step 5: Solve for x
    x = 21,744,042.50/5,171.79
  6. Step 6: Final answer
    x = 4,204.35

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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.