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Finding the Fourth Proportional to 7,208.81, 10,803.79 and 3,695.84

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Solution

The fourth proportional to 7,208.81, 10,803.79 and 3,695.84 is: 5,538.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.81 : 10,803.79 = 3,695.84 : x
  2. Step 2: Convert to fraction form
    7,208.81/10,803.79 = 3,695.84/x
  3. Step 3: Cross multiply
    7,208.81x = 10,803.79 × 3,695.84
  4. Step 4: Simplify right side
    7,208.81x = 39,929,015.98
  5. Step 5: Solve for x
    x = 39,929,015.98/7,208.81
  6. Step 6: Final answer
    x = 5,538.92

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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.