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Finding the Fourth Proportional to 7,326.56, 10,989.70 and 2,328.90

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Solution

The fourth proportional to 7,326.56, 10,989.70 and 2,328.90 is: 3,493.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.56 : 10,989.70 = 2,328.90 : x
  2. Step 2: Convert to fraction form
    7,326.56/10,989.70 = 2,328.90/x
  3. Step 3: Cross multiply
    7,326.56x = 10,989.70 × 2,328.90
  4. Step 4: Simplify right side
    7,326.56x = 25,593,900.69
  5. Step 5: Solve for x
    x = 25,593,900.69/7,326.56
  6. Step 6: Final answer
    x = 3,493.31

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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.