Home / 3,109.67-4,664.50-2,132.81

Finding the Fourth Proportional to 3,109.67, 4,664.50 and 2,132.81

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Solution

The fourth proportional to 3,109.67, 4,664.50 and 2,132.81 is: 3,199.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.67 : 4,664.50 = 2,132.81 : x
  2. Step 2: Convert to fraction form
    3,109.67/4,664.50 = 2,132.81/x
  3. Step 3: Cross multiply
    3,109.67x = 4,664.50 × 2,132.81
  4. Step 4: Simplify right side
    3,109.67x = 9,948,463.59
  5. Step 5: Solve for x
    x = 9,948,463.59/3,109.67
  6. Step 6: Final answer
    x = 3,199.21

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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.