Home / 3,933.79-5,426.90-2,438.71

Finding the Fourth Proportional to 3,933.79, 5,426.90 and 2,438.71

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Solution

The fourth proportional to 3,933.79, 5,426.90 and 2,438.71 is: 3,364.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.79 : 5,426.90 = 2,438.71 : x
  2. Step 2: Convert to fraction form
    3,933.79/5,426.90 = 2,438.71/x
  3. Step 3: Cross multiply
    3,933.79x = 5,426.90 × 2,438.71
  4. Step 4: Simplify right side
    3,933.79x = 13,234,623.11
  5. Step 5: Solve for x
    x = 13,234,623.11/3,933.79
  6. Step 6: Final answer
    x = 3,364.34

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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.