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Finding the Fourth Proportional to 3,145.67, 4,715.79 and 1,295.63

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Solution

The fourth proportional to 3,145.67, 4,715.79 and 1,295.63 is: 1,942.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.67 : 4,715.79 = 1,295.63 : x
  2. Step 2: Convert to fraction form
    3,145.67/4,715.79 = 1,295.63/x
  3. Step 3: Cross multiply
    3,145.67x = 4,715.79 × 1,295.63
  4. Step 4: Simplify right side
    3,145.67x = 6,109,919.00
  5. Step 5: Solve for x
    x = 6,109,919.00/3,145.67
  6. Step 6: Final answer
    x = 1,942.33

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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.