Home / 3,380.16-4,658.79-2,784.42

Finding the Fourth Proportional to 3,380.16, 4,658.79 and 2,784.42

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Solution

The fourth proportional to 3,380.16, 4,658.79 and 2,784.42 is: 3,837.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.16 : 4,658.79 = 2,784.42 : x
  2. Step 2: Convert to fraction form
    3,380.16/4,658.79 = 2,784.42/x
  3. Step 3: Cross multiply
    3,380.16x = 4,658.79 × 2,784.42
  4. Step 4: Simplify right side
    3,380.16x = 12,972,028.05
  5. Step 5: Solve for x
    x = 12,972,028.05/3,380.16
  6. Step 6: Final answer
    x = 3,837.70

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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.