Home / 6,278.76-9,405.57-3,778.56

Finding the Fourth Proportional to 6,278.76, 9,405.57 and 3,778.56

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Solution

The fourth proportional to 6,278.76, 9,405.57 and 3,778.56 is: 5,660.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.76 : 9,405.57 = 3,778.56 : x
  2. Step 2: Convert to fraction form
    6,278.76/9,405.57 = 3,778.56/x
  3. Step 3: Cross multiply
    6,278.76x = 9,405.57 × 3,778.56
  4. Step 4: Simplify right side
    6,278.76x = 35,539,510.58
  5. Step 5: Solve for x
    x = 35,539,510.58/6,278.76
  6. Step 6: Final answer
    x = 5,660.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.