Home / 3,225.78-4,451.21-1,809.17

Finding the Fourth Proportional to 3,225.78, 4,451.21 and 1,809.17

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Solution

The fourth proportional to 3,225.78, 4,451.21 and 1,809.17 is: 2,496.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,225.78 : 4,451.21 = 1,809.17 : x
  2. Step 2: Convert to fraction form
    3,225.78/4,451.21 = 1,809.17/x
  3. Step 3: Cross multiply
    3,225.78x = 4,451.21 × 1,809.17
  4. Step 4: Simplify right side
    3,225.78x = 8,052,994.55
  5. Step 5: Solve for x
    x = 8,052,994.55/3,225.78
  6. Step 6: Final answer
    x = 2,496.45

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Half scale
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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.