Home / 3,450.45-5,146.98-3,118.29

Finding the Fourth Proportional to 3,450.45, 5,146.98 and 3,118.29

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Solution

The fourth proportional to 3,450.45, 5,146.98 and 3,118.29 is: 4,651.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.45 : 5,146.98 = 3,118.29 : x
  2. Step 2: Convert to fraction form
    3,450.45/5,146.98 = 3,118.29/x
  3. Step 3: Cross multiply
    3,450.45x = 5,146.98 × 3,118.29
  4. Step 4: Simplify right side
    3,450.45x = 16,049,776.26
  5. Step 5: Solve for x
    x = 16,049,776.26/3,450.45
  6. Step 6: Final answer
    x = 4,651.50

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Half scale
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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.