Home / 5,129.30-7,685.85-3,277.10

Finding the Fourth Proportional to 5,129.30, 7,685.85 and 3,277.10

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Solution

The fourth proportional to 5,129.30, 7,685.85 and 3,277.10 is: 4,910.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.30 : 7,685.85 = 3,277.10 : x
  2. Step 2: Convert to fraction form
    5,129.30/7,685.85 = 3,277.10/x
  3. Step 3: Cross multiply
    5,129.30x = 7,685.85 × 3,277.10
  4. Step 4: Simplify right side
    5,129.30x = 25,187,299.04
  5. Step 5: Solve for x
    x = 25,187,299.04/5,129.30
  6. Step 6: Final answer
    x = 4,910.47

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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.