Home / 5,159.60-7,120.33-2,801.73

Finding the Fourth Proportional to 5,159.60, 7,120.33 and 2,801.73

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Solution

The fourth proportional to 5,159.60, 7,120.33 and 2,801.73 is: 3,866.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.60 : 7,120.33 = 2,801.73 : x
  2. Step 2: Convert to fraction form
    5,159.60/7,120.33 = 2,801.73/x
  3. Step 3: Cross multiply
    5,159.60x = 7,120.33 × 2,801.73
  4. Step 4: Simplify right side
    5,159.60x = 19,949,242.17
  5. Step 5: Solve for x
    x = 19,949,242.17/5,159.60
  6. Step 6: Final answer
    x = 3,866.43

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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.