Home / 3,518.92-5,279.10-1,210.12

Finding the Fourth Proportional to 3,518.92, 5,279.10 and 1,210.12

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Solution

The fourth proportional to 3,518.92, 5,279.10 and 1,210.12 is: 1,815.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.92 : 5,279.10 = 1,210.12 : x
  2. Step 2: Convert to fraction form
    3,518.92/5,279.10 = 1,210.12/x
  3. Step 3: Cross multiply
    3,518.92x = 5,279.10 × 1,210.12
  4. Step 4: Simplify right side
    3,518.92x = 6,388,344.49
  5. Step 5: Solve for x
    x = 6,388,344.49/3,518.92
  6. Step 6: Final answer
    x = 1,815.43

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Similar ratio
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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.