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Finding the Fourth Proportional to 6,981.96, 10,472.69 and 1,716.99

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Solution

The fourth proportional to 6,981.96, 10,472.69 and 1,716.99 is: 2,575.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,981.96 : 10,472.69 = 1,716.99 : x
  2. Step 2: Convert to fraction form
    6,981.96/10,472.69 = 1,716.99/x
  3. Step 3: Cross multiply
    6,981.96x = 10,472.69 × 1,716.99
  4. Step 4: Simplify right side
    6,981.96x = 17,981,495.42
  5. Step 5: Solve for x
    x = 17,981,495.42/6,981.96
  6. Step 6: Final answer
    x = 2,575.42

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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.