Home / 1,666.65-2,299.26-1,169.61

Finding the Fourth Proportional to 1,666.65, 2,299.26 and 1,169.61

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Solution

The fourth proportional to 1,666.65, 2,299.26 and 1,169.61 is: 1,613.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.65 : 2,299.26 = 1,169.61 : x
  2. Step 2: Convert to fraction form
    1,666.65/2,299.26 = 1,169.61/x
  3. Step 3: Cross multiply
    1,666.65x = 2,299.26 × 1,169.61
  4. Step 4: Simplify right side
    1,666.65x = 2,689,231.64
  5. Step 5: Solve for x
    x = 2,689,231.64/1,666.65
  6. Step 6: Final answer
    x = 1,613.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.