Home / 5,890.39-8,128.73-3,237.80

Finding the Fourth Proportional to 5,890.39, 8,128.73 and 3,237.80

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Solution

The fourth proportional to 5,890.39, 8,128.73 and 3,237.80 is: 4,468.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890.39 : 8,128.73 = 3,237.80 : x
  2. Step 2: Convert to fraction form
    5,890.39/8,128.73 = 3,237.80/x
  3. Step 3: Cross multiply
    5,890.39x = 8,128.73 × 3,237.80
  4. Step 4: Simplify right side
    5,890.39x = 26,319,169.44
  5. Step 5: Solve for x
    x = 26,319,169.44/5,890.39
  6. Step 6: Final answer
    x = 4,468.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.