Home / 6,428.80-9,636.72-2,962

Finding the Fourth Proportional to 6,428.80, 9,636.72 and 2,962

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Solution

The fourth proportional to 6,428.80, 9,636.72 and 2,962 is: 4,440.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.80 : 9,636.72 = 2,962 : x
  2. Step 2: Convert to fraction form
    6,428.80/9,636.72 = 2,962/x
  3. Step 3: Cross multiply
    6,428.80x = 9,636.72 × 2,962
  4. Step 4: Simplify right side
    6,428.80x = 28,543,964.64
  5. Step 5: Solve for x
    x = 28,543,964.64/6,428.80
  6. Step 6: Final answer
    x = 4,440.01

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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.