Home / 3,816.92-5,269.88-2,931.12

Finding the Fourth Proportional to 3,816.92, 5,269.88 and 2,931.12

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Solution

The fourth proportional to 3,816.92, 5,269.88 and 2,931.12 is: 4,046.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.92 : 5,269.88 = 2,931.12 : x
  2. Step 2: Convert to fraction form
    3,816.92/5,269.88 = 2,931.12/x
  3. Step 3: Cross multiply
    3,816.92x = 5,269.88 × 2,931.12
  4. Step 4: Simplify right side
    3,816.92x = 15,446,650.67
  5. Step 5: Solve for x
    x = 15,446,650.67/3,816.92
  6. Step 6: Final answer
    x = 4,046.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.