Home / 5,149.66-7,106.58-2,791.84

Finding the Fourth Proportional to 5,149.66, 7,106.58 and 2,791.84

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Solution

The fourth proportional to 5,149.66, 7,106.58 and 2,791.84 is: 3,852.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.66 : 7,106.58 = 2,791.84 : x
  2. Step 2: Convert to fraction form
    5,149.66/7,106.58 = 2,791.84/x
  3. Step 3: Cross multiply
    5,149.66x = 7,106.58 × 2,791.84
  4. Step 4: Simplify right side
    5,149.66x = 19,840,434.31
  5. Step 5: Solve for x
    x = 19,840,434.31/5,149.66
  6. Step 6: Final answer
    x = 3,852.77

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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.