Home / 6,185.28-8,535.66-3,390.78

Finding the Fourth Proportional to 6,185.28, 8,535.66 and 3,390.78

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Solution

The fourth proportional to 6,185.28, 8,535.66 and 3,390.78 is: 4,679.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,185.28 : 8,535.66 = 3,390.78 : x
  2. Step 2: Convert to fraction form
    6,185.28/8,535.66 = 3,390.78/x
  3. Step 3: Cross multiply
    6,185.28x = 8,535.66 × 3,390.78
  4. Step 4: Simplify right side
    6,185.28x = 28,942,545.21
  5. Step 5: Solve for x
    x = 28,942,545.21/6,185.28
  6. Step 6: Final answer
    x = 4,679.26

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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.