Home / 5,159.16-7,119.79-2,801.45

Finding the Fourth Proportional to 5,159.16, 7,119.79 and 2,801.45

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Solution

The fourth proportional to 5,159.16, 7,119.79 and 2,801.45 is: 3,866.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.16 : 7,119.79 = 2,801.45 : x
  2. Step 2: Convert to fraction form
    5,159.16/7,119.79 = 2,801.45/x
  3. Step 3: Cross multiply
    5,159.16x = 7,119.79 × 2,801.45
  4. Step 4: Simplify right side
    5,159.16x = 19,945,735.70
  5. Step 5: Solve for x
    x = 19,945,735.70/5,159.16
  6. Step 6: Final answer
    x = 3,866.08

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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.