Home / 5,777.64-7,967.70-3,789.90

Finding the Fourth Proportional to 5,777.64, 7,967.70 and 3,789.90

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Solution

The fourth proportional to 5,777.64, 7,967.70 and 3,789.90 is: 5,226.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777.64 : 7,967.70 = 3,789.90 : x
  2. Step 2: Convert to fraction form
    5,777.64/7,967.70 = 3,789.90/x
  3. Step 3: Cross multiply
    5,777.64x = 7,967.70 × 3,789.90
  4. Step 4: Simplify right side
    5,777.64x = 30,196,786.23
  5. Step 5: Solve for x
    x = 30,196,786.23/5,777.64
  6. Step 6: Final answer
    x = 5,226.49

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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.