Home / 3,518.66-5,279.19-1,328.01

Finding the Fourth Proportional to 3,518.66, 5,279.19 and 1,328.01

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Solution

The fourth proportional to 3,518.66, 5,279.19 and 1,328.01 is: 1,992.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.66 : 5,279.19 = 1,328.01 : x
  2. Step 2: Convert to fraction form
    3,518.66/5,279.19 = 1,328.01/x
  3. Step 3: Cross multiply
    3,518.66x = 5,279.19 × 1,328.01
  4. Step 4: Simplify right side
    3,518.66x = 7,010,817.11
  5. Step 5: Solve for x
    x = 7,010,817.11/3,518.66
  6. Step 6: Final answer
    x = 1,992.47

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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.