Home / 3,811.46-5,259.57-2,132.86

Finding the Fourth Proportional to 3,811.46, 5,259.57 and 2,132.86

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Solution

The fourth proportional to 3,811.46, 5,259.57 and 2,132.86 is: 2,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.46 : 5,259.57 = 2,132.86 : x
  2. Step 2: Convert to fraction form
    3,811.46/5,259.57 = 2,132.86/x
  3. Step 3: Cross multiply
    3,811.46x = 5,259.57 × 2,132.86
  4. Step 4: Simplify right side
    3,811.46x = 11,217,916.14
  5. Step 5: Solve for x
    x = 11,217,916.14/3,811.46
  6. Step 6: Final answer
    x = 2,943.20

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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.