Home / 5,081.63-7,620.71-1,571.16

Finding the Fourth Proportional to 5,081.63, 7,620.71 and 1,571.16

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Solution

The fourth proportional to 5,081.63, 7,620.71 and 1,571.16 is: 2,356.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.63 : 7,620.71 = 1,571.16 : x
  2. Step 2: Convert to fraction form
    5,081.63/7,620.71 = 1,571.16/x
  3. Step 3: Cross multiply
    5,081.63x = 7,620.71 × 1,571.16
  4. Step 4: Simplify right side
    5,081.63x = 11,973,346.87
  5. Step 5: Solve for x
    x = 11,973,346.87/5,081.63
  6. Step 6: Final answer
    x = 2,356.20

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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.