Home / 2,927.10-4,039.79-1,668.61

Finding the Fourth Proportional to 2,927.10, 4,039.79 and 1,668.61

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Solution

The fourth proportional to 2,927.10, 4,039.79 and 1,668.61 is: 2,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.10 : 4,039.79 = 1,668.61 : x
  2. Step 2: Convert to fraction form
    2,927.10/4,039.79 = 1,668.61/x
  3. Step 3: Cross multiply
    2,927.10x = 4,039.79 × 1,668.61
  4. Step 4: Simplify right side
    2,927.10x = 6,740,825.65
  5. Step 5: Solve for x
    x = 6,740,825.65/2,927.10
  6. Step 6: Final answer
    x = 2,302.90

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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.