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Finding the Fourth Proportional to 7,305.80, 10,961.53 and 2,923.70

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Solution

The fourth proportional to 7,305.80, 10,961.53 and 2,923.70 is: 4,386.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.80 : 10,961.53 = 2,923.70 : x
  2. Step 2: Convert to fraction form
    7,305.80/10,961.53 = 2,923.70/x
  3. Step 3: Cross multiply
    7,305.80x = 10,961.53 × 2,923.70
  4. Step 4: Simplify right side
    7,305.80x = 32,048,163.14
  5. Step 5: Solve for x
    x = 32,048,163.14/7,305.80
  6. Step 6: Final answer
    x = 4,386.68

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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.