Home / 5,623.20-7,760.13-3,105.30

Finding the Fourth Proportional to 5,623.20, 7,760.13 and 3,105.30

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Solution

The fourth proportional to 5,623.20, 7,760.13 and 3,105.30 is: 4,285.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,623.20 : 7,760.13 = 3,105.30 : x
  2. Step 2: Convert to fraction form
    5,623.20/7,760.13 = 3,105.30/x
  3. Step 3: Cross multiply
    5,623.20x = 7,760.13 × 3,105.30
  4. Step 4: Simplify right side
    5,623.20x = 24,097,531.69
  5. Step 5: Solve for x
    x = 24,097,531.69/5,623.20
  6. Step 6: Final answer
    x = 4,285.38

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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.