Home / 6,450.80-9,668.64-2,980.76

Finding the Fourth Proportional to 6,450.80, 9,668.64 and 2,980.76

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Solution

The fourth proportional to 6,450.80, 9,668.64 and 2,980.76 is: 4,467.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,450.80 : 9,668.64 = 2,980.76 : x
  2. Step 2: Convert to fraction form
    6,450.80/9,668.64 = 2,980.76/x
  3. Step 3: Cross multiply
    6,450.80x = 9,668.64 × 2,980.76
  4. Step 4: Simplify right side
    6,450.80x = 28,819,895.37
  5. Step 5: Solve for x
    x = 28,819,895.37/6,450.80
  6. Step 6: Final answer
    x = 4,467.65

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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.