Home / 3,838.91-5,297.64-2,160.29

Finding the Fourth Proportional to 3,838.91, 5,297.64 and 2,160.29

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Solution

The fourth proportional to 3,838.91, 5,297.64 and 2,160.29 is: 2,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.91 : 5,297.64 = 2,160.29 : x
  2. Step 2: Convert to fraction form
    3,838.91/5,297.64 = 2,160.29/x
  3. Step 3: Cross multiply
    3,838.91x = 5,297.64 × 2,160.29
  4. Step 4: Simplify right side
    3,838.91x = 11,444,438.72
  5. Step 5: Solve for x
    x = 11,444,438.72/3,838.91
  6. Step 6: Final answer
    x = 2,981.17

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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.