Home / 3,950.01-5,450.91-2,157.50

Finding the Fourth Proportional to 3,950.01, 5,450.91 and 2,157.50

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Solution

The fourth proportional to 3,950.01, 5,450.91 and 2,157.50 is: 2,977.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.01 : 5,450.91 = 2,157.50 : x
  2. Step 2: Convert to fraction form
    3,950.01/5,450.91 = 2,157.50/x
  3. Step 3: Cross multiply
    3,950.01x = 5,450.91 × 2,157.50
  4. Step 4: Simplify right side
    3,950.01x = 11,760,311.07
  5. Step 5: Solve for x
    x = 11,760,311.07/3,950.01
  6. Step 6: Final answer
    x = 2,977.29

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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.