Home / 2,376.08-3,278.72-1,381.68

Finding the Fourth Proportional to 2,376.08, 3,278.72 and 1,381.68

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Solution

The fourth proportional to 2,376.08, 3,278.72 and 1,381.68 is: 1,906.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.08 : 3,278.72 = 1,381.68 : x
  2. Step 2: Convert to fraction form
    2,376.08/3,278.72 = 1,381.68/x
  3. Step 3: Cross multiply
    2,376.08x = 3,278.72 × 1,381.68
  4. Step 4: Simplify right side
    2,376.08x = 4,530,141.85
  5. Step 5: Solve for x
    x = 4,530,141.85/2,376.08
  6. Step 6: Final answer
    x = 1,906.56

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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.