Home / 5,376.28-7,421.72-3,361.56

Finding the Fourth Proportional to 5,376.28, 7,421.72 and 3,361.56

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Solution

The fourth proportional to 5,376.28, 7,421.72 and 3,361.56 is: 4,640.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.28 : 7,421.72 = 3,361.56 : x
  2. Step 2: Convert to fraction form
    5,376.28/7,421.72 = 3,361.56/x
  3. Step 3: Cross multiply
    5,376.28x = 7,421.72 × 3,361.56
  4. Step 4: Simplify right side
    5,376.28x = 24,948,557.08
  5. Step 5: Solve for x
    x = 24,948,557.08/5,376.28
  6. Step 6: Final answer
    x = 4,640.49

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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.