Home / 3,013.62-4,520.43-822.30

Finding the Fourth Proportional to 3,013.62, 4,520.43 and 822.30

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Solution

The fourth proportional to 3,013.62, 4,520.43 and 822.30 is: 1,233.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.62 : 4,520.43 = 822.30 : x
  2. Step 2: Convert to fraction form
    3,013.62/4,520.43 = 822.30/x
  3. Step 3: Cross multiply
    3,013.62x = 4,520.43 × 822.30
  4. Step 4: Simplify right side
    3,013.62x = 3,717,149.59
  5. Step 5: Solve for x
    x = 3,717,149.59/3,013.62
  6. Step 6: Final answer
    x = 1,233.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.