Home / 3,390.75-5,086.98-1,082.25

Finding the Fourth Proportional to 3,390.75, 5,086.98 and 1,082.25

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Solution

The fourth proportional to 3,390.75, 5,086.98 and 1,082.25 is: 1,623.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.75 : 5,086.98 = 1,082.25 : x
  2. Step 2: Convert to fraction form
    3,390.75/5,086.98 = 1,082.25/x
  3. Step 3: Cross multiply
    3,390.75x = 5,086.98 × 1,082.25
  4. Step 4: Simplify right side
    3,390.75x = 5,505,384.11
  5. Step 5: Solve for x
    x = 5,505,384.11/3,390.75
  6. Step 6: Final answer
    x = 1,623.65

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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.