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Finding the Fourth Proportional to 7,209.21, 9,949.41 and 4,375.93

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Solution

The fourth proportional to 7,209.21, 9,949.41 and 4,375.93 is: 6,039.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.21 : 9,949.41 = 4,375.93 : x
  2. Step 2: Convert to fraction form
    7,209.21/9,949.41 = 4,375.93/x
  3. Step 3: Cross multiply
    7,209.21x = 9,949.41 × 4,375.93
  4. Step 4: Simplify right side
    7,209.21x = 43,537,935.63
  5. Step 5: Solve for x
    x = 43,537,935.63/7,209.21
  6. Step 6: Final answer
    x = 6,039.21

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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.