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Finding the Fourth Proportional to 6,555.67, 9,829.86 and 2,170.74

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Solution

The fourth proportional to 6,555.67, 9,829.86 and 2,170.74 is: 3,254.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,555.67 : 9,829.86 = 2,170.74 : x
  2. Step 2: Convert to fraction form
    6,555.67/9,829.86 = 2,170.74/x
  3. Step 3: Cross multiply
    6,555.67x = 9,829.86 × 2,170.74
  4. Step 4: Simplify right side
    6,555.67x = 21,338,070.30
  5. Step 5: Solve for x
    x = 21,338,070.30/6,555.67
  6. Step 6: Final answer
    x = 3,254.90

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1.5x scale

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.