Home / 3,854.57-5,319.30-2,086.17

Finding the Fourth Proportional to 3,854.57, 5,319.30 and 2,086.17

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Solution

The fourth proportional to 3,854.57, 5,319.30 and 2,086.17 is: 2,878.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.57 : 5,319.30 = 2,086.17 : x
  2. Step 2: Convert to fraction form
    3,854.57/5,319.30 = 2,086.17/x
  3. Step 3: Cross multiply
    3,854.57x = 5,319.30 × 2,086.17
  4. Step 4: Simplify right side
    3,854.57x = 11,096,981.88
  5. Step 5: Solve for x
    x = 11,096,981.88/3,854.57
  6. Step 6: Final answer
    x = 2,878.92

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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.