Home / 6,551.80-9,828-2,169.64

Finding the Fourth Proportional to 6,551.80, 9,828 and 2,169.64

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Solution

The fourth proportional to 6,551.80, 9,828 and 2,169.64 is: 3,254.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,551.80 : 9,828 = 2,169.64 : x
  2. Step 2: Convert to fraction form
    6,551.80/9,828 = 2,169.64/x
  3. Step 3: Cross multiply
    6,551.80x = 9,828 × 2,169.64
  4. Step 4: Simplify right side
    6,551.80x = 21,323,221.92
  5. Step 5: Solve for x
    x = 21,323,221.92/6,551.80
  6. Step 6: Final answer
    x = 3,254.56

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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.