Home / 5,623.30-7,760.38-3,105.70

Finding the Fourth Proportional to 5,623.30, 7,760.38 and 3,105.70

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Solution

The fourth proportional to 5,623.30, 7,760.38 and 3,105.70 is: 4,285.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,623.30 : 7,760.38 = 3,105.70 : x
  2. Step 2: Convert to fraction form
    5,623.30/7,760.38 = 3,105.70/x
  3. Step 3: Cross multiply
    5,623.30x = 7,760.38 × 3,105.70
  4. Step 4: Simplify right side
    5,623.30x = 24,101,412.17
  5. Step 5: Solve for x
    x = 24,101,412.17/5,623.30
  6. Step 6: Final answer
    x = 4,285.99

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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.