Home / 5,159.26-7,119.69-2,801.35

Finding the Fourth Proportional to 5,159.26, 7,119.69 and 2,801.35

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Solution

The fourth proportional to 5,159.26, 7,119.69 and 2,801.35 is: 3,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.26 : 7,119.69 = 2,801.35 : x
  2. Step 2: Convert to fraction form
    5,159.26/7,119.69 = 2,801.35/x
  3. Step 3: Cross multiply
    5,159.26x = 7,119.69 × 2,801.35
  4. Step 4: Simplify right side
    5,159.26x = 19,944,743.58
  5. Step 5: Solve for x
    x = 19,944,743.58/5,159.26
  6. Step 6: Final answer
    x = 3,865.81

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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.