Home / 3,938.54-5,435.46-2,260.46

Finding the Fourth Proportional to 3,938.54, 5,435.46 and 2,260.46

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Solution

The fourth proportional to 3,938.54, 5,435.46 and 2,260.46 is: 3,119.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.54 : 5,435.46 = 2,260.46 : x
  2. Step 2: Convert to fraction form
    3,938.54/5,435.46 = 2,260.46/x
  3. Step 3: Cross multiply
    3,938.54x = 5,435.46 × 2,260.46
  4. Step 4: Simplify right side
    3,938.54x = 12,286,639.91
  5. Step 5: Solve for x
    x = 12,286,639.91/3,938.54
  6. Step 6: Final answer
    x = 3,119.59

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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.