Home / 7,622.40-11,429.82-2,427.60

Finding the Fourth Proportional to 7,622.40, 11,429.82 and 2,427.60

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Solution

The fourth proportional to 7,622.40, 11,429.82 and 2,427.60 is: 3,640.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.40 : 11,429.82 = 2,427.60 : x
  2. Step 2: Convert to fraction form
    7,622.40/11,429.82 = 2,427.60/x
  3. Step 3: Cross multiply
    7,622.40x = 11,429.82 × 2,427.60
  4. Step 4: Simplify right side
    7,622.40x = 27,747,031.03
  5. Step 5: Solve for x
    x = 27,747,031.03/7,622.40
  6. Step 6: Final answer
    x = 3,640.20

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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.