Home / 5,153.42-7,726.78-3,393.09

Finding the Fourth Proportional to 5,153.42, 7,726.78 and 3,393.09

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Solution

The fourth proportional to 5,153.42, 7,726.78 and 3,393.09 is: 5,087.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.42 : 7,726.78 = 3,393.09 : x
  2. Step 2: Convert to fraction form
    5,153.42/7,726.78 = 3,393.09/x
  3. Step 3: Cross multiply
    5,153.42x = 7,726.78 × 3,393.09
  4. Step 4: Simplify right side
    5,153.42x = 26,217,659.95
  5. Step 5: Solve for x
    x = 26,217,659.95/5,153.42
  6. Step 6: Final answer
    x = 5,087.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.