Home / 2,375.07-3,278.34-1,380.15

Finding the Fourth Proportional to 2,375.07, 3,278.34 and 1,380.15

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Solution

The fourth proportional to 2,375.07, 3,278.34 and 1,380.15 is: 1,905.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,375.07 : 3,278.34 = 1,380.15 : x
  2. Step 2: Convert to fraction form
    2,375.07/3,278.34 = 1,380.15/x
  3. Step 3: Cross multiply
    2,375.07x = 3,278.34 × 1,380.15
  4. Step 4: Simplify right side
    2,375.07x = 4,524,600.95
  5. Step 5: Solve for x
    x = 4,524,600.95/2,375.07
  6. Step 6: Final answer
    x = 1,905.04

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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.