Home / 3,935.69-5,430.75-2,167.26

Finding the Fourth Proportional to 3,935.69, 5,430.75 and 2,167.26

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Solution

The fourth proportional to 3,935.69, 5,430.75 and 2,167.26 is: 2,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.69 : 5,430.75 = 2,167.26 : x
  2. Step 2: Convert to fraction form
    3,935.69/5,430.75 = 2,167.26/x
  3. Step 3: Cross multiply
    3,935.69x = 5,430.75 × 2,167.26
  4. Step 4: Simplify right side
    3,935.69x = 11,769,818.75
  5. Step 5: Solve for x
    x = 11,769,818.75/3,935.69
  6. Step 6: Final answer
    x = 2,990.54

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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.