Home / 3,282.10-4,923.08-816.90

Finding the Fourth Proportional to 3,282.10, 4,923.08 and 816.90

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Solution

The fourth proportional to 3,282.10, 4,923.08 and 816.90 is: 1,225.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,282.10 : 4,923.08 = 816.90 : x
  2. Step 2: Convert to fraction form
    3,282.10/4,923.08 = 816.90/x
  3. Step 3: Cross multiply
    3,282.10x = 4,923.08 × 816.90
  4. Step 4: Simplify right side
    3,282.10x = 4,021,664.05
  5. Step 5: Solve for x
    x = 4,021,664.05/3,282.10
  6. Step 6: Final answer
    x = 1,225.33

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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.