Home / 3,277.32-4,915.83-812.07

Finding the Fourth Proportional to 3,277.32, 4,915.83 and 812.07

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Solution

The fourth proportional to 3,277.32, 4,915.83 and 812.07 is: 1,218.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,277.32 : 4,915.83 = 812.07 : x
  2. Step 2: Convert to fraction form
    3,277.32/4,915.83 = 812.07/x
  3. Step 3: Cross multiply
    3,277.32x = 4,915.83 × 812.07
  4. Step 4: Simplify right side
    3,277.32x = 3,991,998.07
  5. Step 5: Solve for x
    x = 3,991,998.07/3,277.32
  6. Step 6: Final answer
    x = 1,218.07

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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.