Home / 9,321.04-13,979.40-2,745.46

Finding the Fourth Proportional to 9,321.04, 13,979.40 and 2,745.46

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Solution

The fourth proportional to 9,321.04, 13,979.40 and 2,745.46 is: 4,117.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321.04 : 13,979.40 = 2,745.46 : x
  2. Step 2: Convert to fraction form
    9,321.04/13,979.40 = 2,745.46/x
  3. Step 3: Cross multiply
    9,321.04x = 13,979.40 × 2,745.46
  4. Step 4: Simplify right side
    9,321.04x = 38,379,883.52
  5. Step 5: Solve for x
    x = 38,379,883.52/9,321.04
  6. Step 6: Final answer
    x = 4,117.55

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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.