Home / 6,555.60-9,829.76-2,171.88

Finding the Fourth Proportional to 6,555.60, 9,829.76 and 2,171.88

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Solution

The fourth proportional to 6,555.60, 9,829.76 and 2,171.88 is: 3,256.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,555.60 : 9,829.76 = 2,171.88 : x
  2. Step 2: Convert to fraction form
    6,555.60/9,829.76 = 2,171.88/x
  3. Step 3: Cross multiply
    6,555.60x = 9,829.76 × 2,171.88
  4. Step 4: Simplify right side
    6,555.60x = 21,349,059.15
  5. Step 5: Solve for x
    x = 21,349,059.15/6,555.60
  6. Step 6: Final answer
    x = 3,256.61

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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.