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Finding the Fourth Proportional to 7,329.47, 10,991.46 and 2,945.44

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Solution

The fourth proportional to 7,329.47, 10,991.46 and 2,945.44 is: 4,417.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.47 : 10,991.46 = 2,945.44 : x
  2. Step 2: Convert to fraction form
    7,329.47/10,991.46 = 2,945.44/x
  3. Step 3: Cross multiply
    7,329.47x = 10,991.46 × 2,945.44
  4. Step 4: Simplify right side
    7,329.47x = 32,374,630.99
  5. Step 5: Solve for x
    x = 32,374,630.99/7,329.47
  6. Step 6: Final answer
    x = 4,417.05

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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.