Home / 3,895.81-5,376.68-2,217.62

Finding the Fourth Proportional to 3,895.81, 5,376.68 and 2,217.62

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Solution

The fourth proportional to 3,895.81, 5,376.68 and 2,217.62 is: 3,060.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.81 : 5,376.68 = 2,217.62 : x
  2. Step 2: Convert to fraction form
    3,895.81/5,376.68 = 2,217.62/x
  3. Step 3: Cross multiply
    3,895.81x = 5,376.68 × 2,217.62
  4. Step 4: Simplify right side
    3,895.81x = 11,923,433.10
  5. Step 5: Solve for x
    x = 11,923,433.10/3,895.81
  6. Step 6: Final answer
    x = 3,060.58

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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.