Home / 3,916.92-5,397.54-2,794.70

Finding the Fourth Proportional to 3,916.92, 5,397.54 and 2,794.70

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Solution

The fourth proportional to 3,916.92, 5,397.54 and 2,794.70 is: 3,851.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.92 : 5,397.54 = 2,794.70 : x
  2. Step 2: Convert to fraction form
    3,916.92/5,397.54 = 2,794.70/x
  3. Step 3: Cross multiply
    3,916.92x = 5,397.54 × 2,794.70
  4. Step 4: Simplify right side
    3,916.92x = 15,084,478.05
  5. Step 5: Solve for x
    x = 15,084,478.05/3,916.92
  6. Step 6: Final answer
    x = 3,851.11

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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.