Home / 6,619.68-9,929.79-2,002.68

Finding the Fourth Proportional to 6,619.68, 9,929.79 and 2,002.68

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Solution

The fourth proportional to 6,619.68, 9,929.79 and 2,002.68 is: 3,004.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.68 : 9,929.79 = 2,002.68 : x
  2. Step 2: Convert to fraction form
    6,619.68/9,929.79 = 2,002.68/x
  3. Step 3: Cross multiply
    6,619.68x = 9,929.79 × 2,002.68
  4. Step 4: Simplify right side
    6,619.68x = 19,886,191.84
  5. Step 5: Solve for x
    x = 19,886,191.84/6,619.68
  6. Step 6: Final answer
    x = 3,004.10

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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.