Home / 2,273.14-3,129.33-2,168.65

Finding the Fourth Proportional to 2,273.14, 3,129.33 and 2,168.65

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Solution

The fourth proportional to 2,273.14, 3,129.33 and 2,168.65 is: 2,985.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,273.14 : 3,129.33 = 2,168.65 : x
  2. Step 2: Convert to fraction form
    2,273.14/3,129.33 = 2,168.65/x
  3. Step 3: Cross multiply
    2,273.14x = 3,129.33 × 2,168.65
  4. Step 4: Simplify right side
    2,273.14x = 6,786,421.50
  5. Step 5: Solve for x
    x = 6,786,421.50/2,273.14
  6. Step 6: Final answer
    x = 2,985.48

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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.