Home / 5,374.28-7,416.90-3,278.78

Finding the Fourth Proportional to 5,374.28, 7,416.90 and 3,278.78

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Solution

The fourth proportional to 5,374.28, 7,416.90 and 3,278.78 is: 4,524.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,374.28 : 7,416.90 = 3,278.78 : x
  2. Step 2: Convert to fraction form
    5,374.28/7,416.90 = 3,278.78/x
  3. Step 3: Cross multiply
    5,374.28x = 7,416.90 × 3,278.78
  4. Step 4: Simplify right side
    5,374.28x = 24,318,383.38
  5. Step 5: Solve for x
    x = 24,318,383.38/5,374.28
  6. Step 6: Final answer
    x = 4,524.96

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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.