Home / 5,454.79-8,174.36-3,109.95

Finding the Fourth Proportional to 5,454.79, 8,174.36 and 3,109.95

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Solution

The fourth proportional to 5,454.79, 8,174.36 and 3,109.95 is: 4,660.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,454.79 : 8,174.36 = 3,109.95 : x
  2. Step 2: Convert to fraction form
    5,454.79/8,174.36 = 3,109.95/x
  3. Step 3: Cross multiply
    5,454.79x = 8,174.36 × 3,109.95
  4. Step 4: Simplify right side
    5,454.79x = 25,421,858.66
  5. Step 5: Solve for x
    x = 25,421,858.66/5,454.79
  6. Step 6: Final answer
    x = 4,660.47

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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.