Home / 6,977.20-9,628.70-3,790.49

Finding the Fourth Proportional to 6,977.20, 9,628.70 and 3,790.49

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Solution

The fourth proportional to 6,977.20, 9,628.70 and 3,790.49 is: 5,230.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,977.20 : 9,628.70 = 3,790.49 : x
  2. Step 2: Convert to fraction form
    6,977.20/9,628.70 = 3,790.49/x
  3. Step 3: Cross multiply
    6,977.20x = 9,628.70 × 3,790.49
  4. Step 4: Simplify right side
    6,977.20x = 36,497,524.61
  5. Step 5: Solve for x
    x = 36,497,524.61/6,977.20
  6. Step 6: Final answer
    x = 5,230.97

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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.