Home / 6,450.72-9,679.44-2,555.12

Finding the Fourth Proportional to 6,450.72, 9,679.44 and 2,555.12

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Solution

The fourth proportional to 6,450.72, 9,679.44 and 2,555.12 is: 3,834.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,450.72 : 9,679.44 = 2,555.12 : x
  2. Step 2: Convert to fraction form
    6,450.72/9,679.44 = 2,555.12/x
  3. Step 3: Cross multiply
    6,450.72x = 9,679.44 × 2,555.12
  4. Step 4: Simplify right side
    6,450.72x = 24,732,130.73
  5. Step 5: Solve for x
    x = 24,732,130.73/6,450.72
  6. Step 6: Final answer
    x = 3,834.01

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Half scale
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Double scale
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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.