Home / 3,916.32-5,404.68-2,238

Finding the Fourth Proportional to 3,916.32, 5,404.68 and 2,238

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Solution

The fourth proportional to 3,916.32, 5,404.68 and 2,238 is: 3,088.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.32 : 5,404.68 = 2,238 : x
  2. Step 2: Convert to fraction form
    3,916.32/5,404.68 = 2,238/x
  3. Step 3: Cross multiply
    3,916.32x = 5,404.68 × 2,238
  4. Step 4: Simplify right side
    3,916.32x = 12,095,673.84
  5. Step 5: Solve for x
    x = 12,095,673.84/3,916.32
  6. Step 6: Final answer
    x = 3,088.53

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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.