Home / 6,174.78-8,521.20-3,380.28

Finding the Fourth Proportional to 6,174.78, 8,521.20 and 3,380.28

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Solution

The fourth proportional to 6,174.78, 8,521.20 and 3,380.28 is: 4,664.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,174.78 : 8,521.20 = 3,380.28 : x
  2. Step 2: Convert to fraction form
    6,174.78/8,521.20 = 3,380.28/x
  3. Step 3: Cross multiply
    6,174.78x = 8,521.20 × 3,380.28
  4. Step 4: Simplify right side
    6,174.78x = 28,804,041.94
  5. Step 5: Solve for x
    x = 28,804,041.94/6,174.78
  6. Step 6: Final answer
    x = 4,664.79

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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.