Home / 5,159.09-7,119.57-2,801.22

Finding the Fourth Proportional to 5,159.09, 7,119.57 and 2,801.22

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Solution

The fourth proportional to 5,159.09, 7,119.57 and 2,801.22 is: 3,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.09 : 7,119.57 = 2,801.22 : x
  2. Step 2: Convert to fraction form
    5,159.09/7,119.57 = 2,801.22/x
  3. Step 3: Cross multiply
    5,159.09x = 7,119.57 × 2,801.22
  4. Step 4: Simplify right side
    5,159.09x = 19,943,481.88
  5. Step 5: Solve for x
    x = 19,943,481.88/5,159.09
  6. Step 6: Final answer
    x = 3,865.70

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1.5x scale

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.