Home / 6,630.48-9,150.54-3,977.84

Finding the Fourth Proportional to 6,630.48, 9,150.54 and 3,977.84

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Solution

The fourth proportional to 6,630.48, 9,150.54 and 3,977.84 is: 5,489.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.48 : 9,150.54 = 3,977.84 : x
  2. Step 2: Convert to fraction form
    6,630.48/9,150.54 = 3,977.84/x
  3. Step 3: Cross multiply
    6,630.48x = 9,150.54 × 3,977.84
  4. Step 4: Simplify right side
    6,630.48x = 36,399,384.03
  5. Step 5: Solve for x
    x = 36,399,384.03/6,630.48
  6. Step 6: Final answer
    x = 5,489.71

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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.