Home / 3,027.30-4,178.79-2,658.21

Finding the Fourth Proportional to 3,027.30, 4,178.79 and 2,658.21

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Solution

The fourth proportional to 3,027.30, 4,178.79 and 2,658.21 is: 3,669.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,027.30 : 4,178.79 = 2,658.21 : x
  2. Step 2: Convert to fraction form
    3,027.30/4,178.79 = 2,658.21/x
  3. Step 3: Cross multiply
    3,027.30x = 4,178.79 × 2,658.21
  4. Step 4: Simplify right side
    3,027.30x = 11,108,101.37
  5. Step 5: Solve for x
    x = 11,108,101.37/3,027.30
  6. Step 6: Final answer
    x = 3,669.31

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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.