Home / 2,169.12-3,252.98-707.96

Finding the Fourth Proportional to 2,169.12, 3,252.98 and 707.96

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Solution

The fourth proportional to 2,169.12, 3,252.98 and 707.96 is: 1,061.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.12 : 3,252.98 = 707.96 : x
  2. Step 2: Convert to fraction form
    2,169.12/3,252.98 = 707.96/x
  3. Step 3: Cross multiply
    2,169.12x = 3,252.98 × 707.96
  4. Step 4: Simplify right side
    2,169.12x = 2,302,979.72
  5. Step 5: Solve for x
    x = 2,302,979.72/2,169.12
  6. Step 6: Final answer
    x = 1,061.71

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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.