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Finding the Fourth Proportional to 3,679.04, 5,518.94 and 1,339.68

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Solution

The fourth proportional to 3,679.04, 5,518.94 and 1,339.68 is: 2,009.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.04 : 5,518.94 = 1,339.68 : x
  2. Step 2: Convert to fraction form
    3,679.04/5,518.94 = 1,339.68/x
  3. Step 3: Cross multiply
    3,679.04x = 5,518.94 × 1,339.68
  4. Step 4: Simplify right side
    3,679.04x = 7,393,613.54
  5. Step 5: Solve for x
    x = 7,393,613.54/3,679.04
  6. Step 6: Final answer
    x = 2,009.66

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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.