Home / 2,173.18-3,259.62-939.73

Finding the Fourth Proportional to 2,173.18, 3,259.62 and 939.73

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Solution

The fourth proportional to 2,173.18, 3,259.62 and 939.73 is: 1,409.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.18 : 3,259.62 = 939.73 : x
  2. Step 2: Convert to fraction form
    2,173.18/3,259.62 = 939.73/x
  3. Step 3: Cross multiply
    2,173.18x = 3,259.62 × 939.73
  4. Step 4: Simplify right side
    2,173.18x = 3,063,162.70
  5. Step 5: Solve for x
    x = 3,063,162.70/2,173.18
  6. Step 6: Final answer
    x = 1,409.53

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1.5x scale

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.