Home / 5,143.88-7,098.55-2,786.03

Finding the Fourth Proportional to 5,143.88, 7,098.55 and 2,786.03

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Solution

The fourth proportional to 5,143.88, 7,098.55 and 2,786.03 is: 3,844.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.88 : 7,098.55 = 2,786.03 : x
  2. Step 2: Convert to fraction form
    5,143.88/7,098.55 = 2,786.03/x
  3. Step 3: Cross multiply
    5,143.88x = 7,098.55 × 2,786.03
  4. Step 4: Simplify right side
    5,143.88x = 19,776,794.49
  5. Step 5: Solve for x
    x = 19,776,794.49/5,143.88
  6. Step 6: Final answer
    x = 3,844.72

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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.