Home / 6,440.69-9,664.09-3,518.91

Finding the Fourth Proportional to 6,440.69, 9,664.09 and 3,518.91

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Solution

The fourth proportional to 6,440.69, 9,664.09 and 3,518.91 is: 5,280.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.69 : 9,664.09 = 3,518.91 : x
  2. Step 2: Convert to fraction form
    6,440.69/9,664.09 = 3,518.91/x
  3. Step 3: Cross multiply
    6,440.69x = 9,664.09 × 3,518.91
  4. Step 4: Simplify right side
    6,440.69x = 34,007,054.14
  5. Step 5: Solve for x
    x = 34,007,054.14/6,440.69
  6. Step 6: Final answer
    x = 5,280.03

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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.