Home / 2,114.23-3,171.68-727.23

Finding the Fourth Proportional to 2,114.23, 3,171.68 and 727.23

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Solution

The fourth proportional to 2,114.23, 3,171.68 and 727.23 is: 1,090.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.23 : 3,171.68 = 727.23 : x
  2. Step 2: Convert to fraction form
    2,114.23/3,171.68 = 727.23/x
  3. Step 3: Cross multiply
    2,114.23x = 3,171.68 × 727.23
  4. Step 4: Simplify right side
    2,114.23x = 2,306,526.81
  5. Step 5: Solve for x
    x = 2,306,526.81/2,114.23
  6. Step 6: Final answer
    x = 1,090.95

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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.