Home / 5,159.12-7,119.62-2,801.27

Finding the Fourth Proportional to 5,159.12, 7,119.62 and 2,801.27

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Solution

The fourth proportional to 5,159.12, 7,119.62 and 2,801.27 is: 3,865.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.12 : 7,119.62 = 2,801.27 : x
  2. Step 2: Convert to fraction form
    5,159.12/7,119.62 = 2,801.27/x
  3. Step 3: Cross multiply
    5,159.12x = 7,119.62 × 2,801.27
  4. Step 4: Simplify right side
    5,159.12x = 19,943,977.92
  5. Step 5: Solve for x
    x = 19,943,977.92/5,159.12
  6. Step 6: Final answer
    x = 3,865.77

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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.