Home / 5,080.78-7,623.44-3,231.40

Finding the Fourth Proportional to 5,080.78, 7,623.44 and 3,231.40

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Solution

The fourth proportional to 5,080.78, 7,623.44 and 3,231.40 is: 4,848.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,080.78 : 7,623.44 = 3,231.40 : x
  2. Step 2: Convert to fraction form
    5,080.78/7,623.44 = 3,231.40/x
  3. Step 3: Cross multiply
    5,080.78x = 7,623.44 × 3,231.40
  4. Step 4: Simplify right side
    5,080.78x = 24,634,384.02
  5. Step 5: Solve for x
    x = 24,634,384.02/5,080.78
  6. Step 6: Final answer
    x = 4,848.54

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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.