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Finding the Fourth Proportional to 7,008.87, 9,672.12 and 3,822.19

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Solution

The fourth proportional to 7,008.87, 9,672.12 and 3,822.19 is: 5,274.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.87 : 9,672.12 = 3,822.19 : x
  2. Step 2: Convert to fraction form
    7,008.87/9,672.12 = 3,822.19/x
  3. Step 3: Cross multiply
    7,008.87x = 9,672.12 × 3,822.19
  4. Step 4: Simplify right side
    7,008.87x = 36,968,692.43
  5. Step 5: Solve for x
    x = 36,968,692.43/7,008.87
  6. Step 6: Final answer
    x = 5,274.56

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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.