Home / 3,811.10-5,259.69-2,132.64

Finding the Fourth Proportional to 3,811.10, 5,259.69 and 2,132.64

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Solution

The fourth proportional to 3,811.10, 5,259.69 and 2,132.64 is: 2,943.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.10 : 5,259.69 = 2,132.64 : x
  2. Step 2: Convert to fraction form
    3,811.10/5,259.69 = 2,132.64/x
  3. Step 3: Cross multiply
    3,811.10x = 5,259.69 × 2,132.64
  4. Step 4: Simplify right side
    3,811.10x = 11,217,025.28
  5. Step 5: Solve for x
    x = 11,217,025.28/3,811.10
  6. Step 6: Final answer
    x = 2,943.26

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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.