Home / 3,129.93-4,693.68-1,668.29

Finding the Fourth Proportional to 3,129.93, 4,693.68 and 1,668.29

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Solution

The fourth proportional to 3,129.93, 4,693.68 and 1,668.29 is: 2,501.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.93 : 4,693.68 = 1,668.29 : x
  2. Step 2: Convert to fraction form
    3,129.93/4,693.68 = 1,668.29/x
  3. Step 3: Cross multiply
    3,129.93x = 4,693.68 × 1,668.29
  4. Step 4: Simplify right side
    3,129.93x = 7,830,395.94
  5. Step 5: Solve for x
    x = 7,830,395.94/3,129.93
  6. Step 6: Final answer
    x = 2,501.78

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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.