Home / 3,914.40-5,401.50-2,236.20

Finding the Fourth Proportional to 3,914.40, 5,401.50 and 2,236.20

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Solution

The fourth proportional to 3,914.40, 5,401.50 and 2,236.20 is: 3,085.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.40 : 5,401.50 = 2,236.20 : x
  2. Step 2: Convert to fraction form
    3,914.40/5,401.50 = 2,236.20/x
  3. Step 3: Cross multiply
    3,914.40x = 5,401.50 × 2,236.20
  4. Step 4: Simplify right side
    3,914.40x = 12,078,834.30
  5. Step 5: Solve for x
    x = 12,078,834.30/3,914.40
  6. Step 6: Final answer
    x = 3,085.74

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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.