Home / 3,013.30-4,520.91-2,178.80

Finding the Fourth Proportional to 3,013.30, 4,520.91 and 2,178.80

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Solution

The fourth proportional to 3,013.30, 4,520.91 and 2,178.80 is: 3,268.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.30 : 4,520.91 = 2,178.80 : x
  2. Step 2: Convert to fraction form
    3,013.30/4,520.91 = 2,178.80/x
  3. Step 3: Cross multiply
    3,013.30x = 4,520.91 × 2,178.80
  4. Step 4: Simplify right side
    3,013.30x = 9,850,161.23
  5. Step 5: Solve for x
    x = 9,850,161.23/3,013.30
  6. Step 6: Final answer
    x = 3,268.89

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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.