Home / 7,622.88-11,439.11-3,240.37

Finding the Fourth Proportional to 7,622.88, 11,439.11 and 3,240.37

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Solution

The fourth proportional to 7,622.88, 11,439.11 and 3,240.37 is: 4,862.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.88 : 11,439.11 = 3,240.37 : x
  2. Step 2: Convert to fraction form
    7,622.88/11,439.11 = 3,240.37/x
  3. Step 3: Cross multiply
    7,622.88x = 11,439.11 × 3,240.37
  4. Step 4: Simplify right side
    7,622.88x = 37,066,948.87
  5. Step 5: Solve for x
    x = 37,066,948.87/7,622.88
  6. Step 6: Final answer
    x = 4,862.59

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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.