Home / 3,226.13-4,839.38-917.81

Finding the Fourth Proportional to 3,226.13, 4,839.38 and 917.81

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Solution

The fourth proportional to 3,226.13, 4,839.38 and 917.81 is: 1,376.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,226.13 : 4,839.38 = 917.81 : x
  2. Step 2: Convert to fraction form
    3,226.13/4,839.38 = 917.81/x
  3. Step 3: Cross multiply
    3,226.13x = 4,839.38 × 917.81
  4. Step 4: Simplify right side
    3,226.13x = 4,441,602.57
  5. Step 5: Solve for x
    x = 4,441,602.57/3,226.13
  6. Step 6: Final answer
    x = 1,376.76

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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.