Home / 5,780.22-7,976.70-3,127.64

Finding the Fourth Proportional to 5,780.22, 7,976.70 and 3,127.64

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Solution

The fourth proportional to 5,780.22, 7,976.70 and 3,127.64 is: 4,316.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,780.22 : 7,976.70 = 3,127.64 : x
  2. Step 2: Convert to fraction form
    5,780.22/7,976.70 = 3,127.64/x
  3. Step 3: Cross multiply
    5,780.22x = 7,976.70 × 3,127.64
  4. Step 4: Simplify right side
    5,780.22x = 24,948,245.99
  5. Step 5: Solve for x
    x = 24,948,245.99/5,780.22
  6. Step 6: Final answer
    x = 4,316.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.