Home / 5,743.40-8,619.42-3,890.12

Finding the Fourth Proportional to 5,743.40, 8,619.42 and 3,890.12

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Solution

The fourth proportional to 5,743.40, 8,619.42 and 3,890.12 is: 5,838.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,743.40 : 8,619.42 = 3,890.12 : x
  2. Step 2: Convert to fraction form
    5,743.40/8,619.42 = 3,890.12/x
  3. Step 3: Cross multiply
    5,743.40x = 8,619.42 × 3,890.12
  4. Step 4: Simplify right side
    5,743.40x = 33,530,578.13
  5. Step 5: Solve for x
    x = 33,530,578.13/5,743.40
  6. Step 6: Final answer
    x = 5,838.11

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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.