Home / 2,834.30-3,911.33-1,639.45

Finding the Fourth Proportional to 2,834.30, 3,911.33 and 1,639.45

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Solution

The fourth proportional to 2,834.30, 3,911.33 and 1,639.45 is: 2,262.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834.30 : 3,911.33 = 1,639.45 : x
  2. Step 2: Convert to fraction form
    2,834.30/3,911.33 = 1,639.45/x
  3. Step 3: Cross multiply
    2,834.30x = 3,911.33 × 1,639.45
  4. Step 4: Simplify right side
    2,834.30x = 6,412,402.21
  5. Step 5: Solve for x
    x = 6,412,402.21/2,834.30
  6. Step 6: Final answer
    x = 2,262.43

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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.