Home / 3,787.25-5,215.38-2,946.54

Finding the Fourth Proportional to 3,787.25, 5,215.38 and 2,946.54

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Solution

The fourth proportional to 3,787.25, 5,215.38 and 2,946.54 is: 4,057.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.25 : 5,215.38 = 2,946.54 : x
  2. Step 2: Convert to fraction form
    3,787.25/5,215.38 = 2,946.54/x
  3. Step 3: Cross multiply
    3,787.25x = 5,215.38 × 2,946.54
  4. Step 4: Simplify right side
    3,787.25x = 15,367,325.79
  5. Step 5: Solve for x
    x = 15,367,325.79/3,787.25
  6. Step 6: Final answer
    x = 4,057.65

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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.