Home / 3,895.45-5,376.18-2,217.40

Finding the Fourth Proportional to 3,895.45, 5,376.18 and 2,217.40

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Solution

The fourth proportional to 3,895.45, 5,376.18 and 2,217.40 is: 3,060.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.45 : 5,376.18 = 2,217.40 : x
  2. Step 2: Convert to fraction form
    3,895.45/5,376.18 = 2,217.40/x
  3. Step 3: Cross multiply
    3,895.45x = 5,376.18 × 2,217.40
  4. Step 4: Simplify right side
    3,895.45x = 11,921,141.53
  5. Step 5: Solve for x
    x = 11,921,141.53/3,895.45
  6. Step 6: Final answer
    x = 3,060.27

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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.