Home / 3,242.76-4,861.90-2,143.81

Finding the Fourth Proportional to 3,242.76, 4,861.90 and 2,143.81

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Solution

The fourth proportional to 3,242.76, 4,861.90 and 2,143.81 is: 3,214.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,242.76 : 4,861.90 = 2,143.81 : x
  2. Step 2: Convert to fraction form
    3,242.76/4,861.90 = 2,143.81/x
  3. Step 3: Cross multiply
    3,242.76x = 4,861.90 × 2,143.81
  4. Step 4: Simplify right side
    3,242.76x = 10,422,989.84
  5. Step 5: Solve for x
    x = 10,422,989.84/3,242.76
  6. Step 6: Final answer
    x = 3,214.23

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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.