Home / 7,622.28-11,428.14-2,938.44

Finding the Fourth Proportional to 7,622.28, 11,428.14 and 2,938.44

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Solution

The fourth proportional to 7,622.28, 11,428.14 and 2,938.44 is: 4,405.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.28 : 11,428.14 = 2,938.44 : x
  2. Step 2: Convert to fraction form
    7,622.28/11,428.14 = 2,938.44/x
  3. Step 3: Cross multiply
    7,622.28x = 11,428.14 × 2,938.44
  4. Step 4: Simplify right side
    7,622.28x = 33,580,903.70
  5. Step 5: Solve for x
    x = 33,580,903.70/7,622.28
  6. Step 6: Final answer
    x = 4,405.62

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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.