Home / 2,270.32-3,405.12-809.26

Finding the Fourth Proportional to 2,270.32, 3,405.12 and 809.26

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Solution

The fourth proportional to 2,270.32, 3,405.12 and 809.26 is: 1,213.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.32 : 3,405.12 = 809.26 : x
  2. Step 2: Convert to fraction form
    2,270.32/3,405.12 = 809.26/x
  3. Step 3: Cross multiply
    2,270.32x = 3,405.12 × 809.26
  4. Step 4: Simplify right side
    2,270.32x = 2,755,627.41
  5. Step 5: Solve for x
    x = 2,755,627.41/2,270.32
  6. Step 6: Final answer
    x = 1,213.76

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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.