Home / 5,159.64-7,120.29-2,801.82

Finding the Fourth Proportional to 5,159.64, 7,120.29 and 2,801.82

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Solution

The fourth proportional to 5,159.64, 7,120.29 and 2,801.82 is: 3,866.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.64 : 7,120.29 = 2,801.82 : x
  2. Step 2: Convert to fraction form
    5,159.64/7,120.29 = 2,801.82/x
  3. Step 3: Cross multiply
    5,159.64x = 7,120.29 × 2,801.82
  4. Step 4: Simplify right side
    5,159.64x = 19,949,770.93
  5. Step 5: Solve for x
    x = 19,949,770.93/5,159.64
  6. Step 6: Final answer
    x = 3,866.50

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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.