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Finding the Fourth Proportional to 7,107.90, 9,799.02 and 4,453.53

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Solution

The fourth proportional to 7,107.90, 9,799.02 and 4,453.53 is: 6,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.90 : 9,799.02 = 4,453.53 : x
  2. Step 2: Convert to fraction form
    7,107.90/9,799.02 = 4,453.53/x
  3. Step 3: Cross multiply
    7,107.90x = 9,799.02 × 4,453.53
  4. Step 4: Simplify right side
    7,107.90x = 43,640,229.54
  5. Step 5: Solve for x
    x = 43,640,229.54/7,107.90
  6. Step 6: Final answer
    x = 6,139.68

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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.