Home / 5,026.80-6,932.43-3,138.55

Finding the Fourth Proportional to 5,026.80, 6,932.43 and 3,138.55

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Solution

The fourth proportional to 5,026.80, 6,932.43 and 3,138.55 is: 4,328.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,026.80 : 6,932.43 = 3,138.55 : x
  2. Step 2: Convert to fraction form
    5,026.80/6,932.43 = 3,138.55/x
  3. Step 3: Cross multiply
    5,026.80x = 6,932.43 × 3,138.55
  4. Step 4: Simplify right side
    5,026.80x = 21,757,786.02
  5. Step 5: Solve for x
    x = 21,757,786.02/5,026.80
  6. Step 6: Final answer
    x = 4,328.36

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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.