Home / 3,811.25-5,259.23-2,132.35

Finding the Fourth Proportional to 3,811.25, 5,259.23 and 2,132.35

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Solution

The fourth proportional to 3,811.25, 5,259.23 and 2,132.35 is: 2,942.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.25 : 5,259.23 = 2,132.35 : x
  2. Step 2: Convert to fraction form
    3,811.25/5,259.23 = 2,132.35/x
  3. Step 3: Cross multiply
    3,811.25x = 5,259.23 × 2,132.35
  4. Step 4: Simplify right side
    3,811.25x = 11,214,492.79
  5. Step 5: Solve for x
    x = 11,214,492.79/3,811.25
  6. Step 6: Final answer
    x = 2,942.47

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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.