Home / 3,455.92-5,148.98-3,290.80

Finding the Fourth Proportional to 3,455.92, 5,148.98 and 3,290.80

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Solution

The fourth proportional to 3,455.92, 5,148.98 and 3,290.80 is: 4,902.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.92 : 5,148.98 = 3,290.80 : x
  2. Step 2: Convert to fraction form
    3,455.92/5,148.98 = 3,290.80/x
  3. Step 3: Cross multiply
    3,455.92x = 5,148.98 × 3,290.80
  4. Step 4: Simplify right side
    3,455.92x = 16,944,263.38
  5. Step 5: Solve for x
    x = 16,944,263.38/3,455.92
  6. Step 6: Final answer
    x = 4,902.97

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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.