Home / 3,938.62-5,426.06-2,741.56

Finding the Fourth Proportional to 3,938.62, 5,426.06 and 2,741.56

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Solution

The fourth proportional to 3,938.62, 5,426.06 and 2,741.56 is: 3,776.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.62 : 5,426.06 = 2,741.56 : x
  2. Step 2: Convert to fraction form
    3,938.62/5,426.06 = 2,741.56/x
  3. Step 3: Cross multiply
    3,938.62x = 5,426.06 × 2,741.56
  4. Step 4: Simplify right side
    3,938.62x = 14,875,869.05
  5. Step 5: Solve for x
    x = 14,875,869.05/3,938.62
  6. Step 6: Final answer
    x = 3,776.92

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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.