Home / 5,078.16-7,619.40-3,231.36

Finding the Fourth Proportional to 5,078.16, 7,619.40 and 3,231.36

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Solution

The fourth proportional to 5,078.16, 7,619.40 and 3,231.36 is: 4,848.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.16 : 7,619.40 = 3,231.36 : x
  2. Step 2: Convert to fraction form
    5,078.16/7,619.40 = 3,231.36/x
  3. Step 3: Cross multiply
    5,078.16x = 7,619.40 × 3,231.36
  4. Step 4: Simplify right side
    5,078.16x = 24,621,024.38
  5. Step 5: Solve for x
    x = 24,621,024.38/5,078.16
  6. Step 6: Final answer
    x = 4,848.41

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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.