Home / 3,427.58-5,108.86-3,178.28

Finding the Fourth Proportional to 3,427.58, 5,108.86 and 3,178.28

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Solution

The fourth proportional to 3,427.58, 5,108.86 and 3,178.28 is: 4,737.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.58 : 5,108.86 = 3,178.28 : x
  2. Step 2: Convert to fraction form
    3,427.58/5,108.86 = 3,178.28/x
  3. Step 3: Cross multiply
    3,427.58x = 5,108.86 × 3,178.28
  4. Step 4: Simplify right side
    3,427.58x = 16,237,387.56
  5. Step 5: Solve for x
    x = 16,237,387.56/3,427.58
  6. Step 6: Final answer
    x = 4,737.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.