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Finding the Fourth Proportional to 3,912.95, 5,865.48 and 2,453.13

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Solution

The fourth proportional to 3,912.95, 5,865.48 and 2,453.13 is: 3,677.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.95 : 5,865.48 = 2,453.13 : x
  2. Step 2: Convert to fraction form
    3,912.95/5,865.48 = 2,453.13/x
  3. Step 3: Cross multiply
    3,912.95x = 5,865.48 × 2,453.13
  4. Step 4: Simplify right side
    3,912.95x = 14,388,784.95
  5. Step 5: Solve for x
    x = 14,388,784.95/3,912.95
  6. Step 6: Final answer
    x = 3,677.22

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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.