Home / 6,977.49-9,628.97-4,105.50

Finding the Fourth Proportional to 6,977.49, 9,628.97 and 4,105.50

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Solution

The fourth proportional to 6,977.49, 9,628.97 and 4,105.50 is: 5,665.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,977.49 : 9,628.97 = 4,105.50 : x
  2. Step 2: Convert to fraction form
    6,977.49/9,628.97 = 4,105.50/x
  3. Step 3: Cross multiply
    6,977.49x = 9,628.97 × 4,105.50
  4. Step 4: Simplify right side
    6,977.49x = 39,531,715.81
  5. Step 5: Solve for x
    x = 39,531,715.81/6,977.49
  6. Step 6: Final answer
    x = 5,665.61

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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.