Home / 5,125.37-7,680.62-2,783.39

Finding the Fourth Proportional to 5,125.37, 7,680.62 and 2,783.39

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Solution

The fourth proportional to 5,125.37, 7,680.62 and 2,783.39 is: 4,171.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.37 : 7,680.62 = 2,783.39 : x
  2. Step 2: Convert to fraction form
    5,125.37/7,680.62 = 2,783.39/x
  3. Step 3: Cross multiply
    5,125.37x = 7,680.62 × 2,783.39
  4. Step 4: Simplify right side
    5,125.37x = 21,378,108.58
  5. Step 5: Solve for x
    x = 21,378,108.58/5,125.37
  6. Step 6: Final answer
    x = 4,171.04

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1.5x scale

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.