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Finding the Fourth Proportional to 3,491.99, 5,239.88 and 2,713.56

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Solution

The fourth proportional to 3,491.99, 5,239.88 and 2,713.56 is: 4,071.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.99 : 5,239.88 = 2,713.56 : x
  2. Step 2: Convert to fraction form
    3,491.99/5,239.88 = 2,713.56/x
  3. Step 3: Cross multiply
    3,491.99x = 5,239.88 × 2,713.56
  4. Step 4: Simplify right side
    3,491.99x = 14,218,715.21
  5. Step 5: Solve for x
    x = 14,218,715.21/3,491.99
  6. Step 6: Final answer
    x = 4,071.81

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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.