Home / 3,519.54-5,279.85-1,210.50

Finding the Fourth Proportional to 3,519.54, 5,279.85 and 1,210.50

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Solution

The fourth proportional to 3,519.54, 5,279.85 and 1,210.50 is: 1,815.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.54 : 5,279.85 = 1,210.50 : x
  2. Step 2: Convert to fraction form
    3,519.54/5,279.85 = 1,210.50/x
  3. Step 3: Cross multiply
    3,519.54x = 5,279.85 × 1,210.50
  4. Step 4: Simplify right side
    3,519.54x = 6,391,258.43
  5. Step 5: Solve for x
    x = 6,391,258.43/3,519.54
  6. Step 6: Final answer
    x = 1,815.94

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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.