Home / 5,180.16-7,764.70-2,055.84

Finding the Fourth Proportional to 5,180.16, 7,764.70 and 2,055.84

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Solution

The fourth proportional to 5,180.16, 7,764.70 and 2,055.84 is: 3,081.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.16 : 7,764.70 = 2,055.84 : x
  2. Step 2: Convert to fraction form
    5,180.16/7,764.70 = 2,055.84/x
  3. Step 3: Cross multiply
    5,180.16x = 7,764.70 × 2,055.84
  4. Step 4: Simplify right side
    5,180.16x = 15,962,980.85
  5. Step 5: Solve for x
    x = 15,962,980.85/5,180.16
  6. Step 6: Final answer
    x = 3,081.56

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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.