Home / 3,545.09-5,286.66-3,108.36

Finding the Fourth Proportional to 3,545.09, 5,286.66 and 3,108.36

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Solution

The fourth proportional to 3,545.09, 5,286.66 and 3,108.36 is: 4,635.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.09 : 5,286.66 = 3,108.36 : x
  2. Step 2: Convert to fraction form
    3,545.09/5,286.66 = 3,108.36/x
  3. Step 3: Cross multiply
    3,545.09x = 5,286.66 × 3,108.36
  4. Step 4: Simplify right side
    3,545.09x = 16,432,842.48
  5. Step 5: Solve for x
    x = 16,432,842.48/3,545.09
  6. Step 6: Final answer
    x = 4,635.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.