Home / 5,149.50-7,725.36-2,071.50

Finding the Fourth Proportional to 5,149.50, 7,725.36 and 2,071.50

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Solution

The fourth proportional to 5,149.50, 7,725.36 and 2,071.50 is: 3,107.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.50 : 7,725.36 = 2,071.50 : x
  2. Step 2: Convert to fraction form
    5,149.50/7,725.36 = 2,071.50/x
  3. Step 3: Cross multiply
    5,149.50x = 7,725.36 × 2,071.50
  4. Step 4: Simplify right side
    5,149.50x = 16,003,083.24
  5. Step 5: Solve for x
    x = 16,003,083.24/5,149.50
  6. Step 6: Final answer
    x = 3,107.70

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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.