Home / 5,081.07-7,620.56-1,960.01

Finding the Fourth Proportional to 5,081.07, 7,620.56 and 1,960.01

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Solution

The fourth proportional to 5,081.07, 7,620.56 and 1,960.01 is: 2,939.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.07 : 7,620.56 = 1,960.01 : x
  2. Step 2: Convert to fraction form
    5,081.07/7,620.56 = 1,960.01/x
  3. Step 3: Cross multiply
    5,081.07x = 7,620.56 × 1,960.01
  4. Step 4: Simplify right side
    5,081.07x = 14,936,325.90
  5. Step 5: Solve for x
    x = 14,936,325.90/5,081.07
  6. Step 6: Final answer
    x = 2,939.60

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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.