Home / 5,078.82-7,008.78-3,089.36

Finding the Fourth Proportional to 5,078.82, 7,008.78 and 3,089.36

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Solution

The fourth proportional to 5,078.82, 7,008.78 and 3,089.36 is: 4,263.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.82 : 7,008.78 = 3,089.36 : x
  2. Step 2: Convert to fraction form
    5,078.82/7,008.78 = 3,089.36/x
  3. Step 3: Cross multiply
    5,078.82x = 7,008.78 × 3,089.36
  4. Step 4: Simplify right side
    5,078.82x = 21,652,609.54
  5. Step 5: Solve for x
    x = 21,652,609.54/5,078.82
  6. Step 6: Final answer
    x = 4,263.32

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1.5x scale

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.