Home / 7,931.68-11,896.62-2,088.76

Finding the Fourth Proportional to 7,931.68, 11,896.62 and 2,088.76

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Solution

The fourth proportional to 7,931.68, 11,896.62 and 2,088.76 is: 3,132.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.68 : 11,896.62 = 2,088.76 : x
  2. Step 2: Convert to fraction form
    7,931.68/11,896.62 = 2,088.76/x
  3. Step 3: Cross multiply
    7,931.68x = 11,896.62 × 2,088.76
  4. Step 4: Simplify right side
    7,931.68x = 24,849,183.99
  5. Step 5: Solve for x
    x = 24,849,183.99/7,931.68
  6. Step 6: Final answer
    x = 3,132.90

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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.