Home / 6,123.45-8,450.25-3,470.80

Finding the Fourth Proportional to 6,123.45, 8,450.25 and 3,470.80

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Solution

The fourth proportional to 6,123.45, 8,450.25 and 3,470.80 is: 4,789.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,123.45 : 8,450.25 = 3,470.80 : x
  2. Step 2: Convert to fraction form
    6,123.45/8,450.25 = 3,470.80/x
  3. Step 3: Cross multiply
    6,123.45x = 8,450.25 × 3,470.80
  4. Step 4: Simplify right side
    6,123.45x = 29,329,119.16
  5. Step 5: Solve for x
    x = 29,329,119.16/6,123.45
  6. Step 6: Final answer
    x = 4,789.64

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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.