Home / 7,908.31-11,861.22-2,643.27

Finding the Fourth Proportional to 7,908.31, 11,861.22 and 2,643.27

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Solution

The fourth proportional to 7,908.31, 11,861.22 and 2,643.27 is: 3,964.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.31 : 11,861.22 = 2,643.27 : x
  2. Step 2: Convert to fraction form
    7,908.31/11,861.22 = 2,643.27/x
  3. Step 3: Cross multiply
    7,908.31x = 11,861.22 × 2,643.27
  4. Step 4: Simplify right side
    7,908.31x = 31,352,406.99
  5. Step 5: Solve for x
    x = 31,352,406.99/7,908.31
  6. Step 6: Final answer
    x = 3,964.49

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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.